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Добірка наукової літератури з теми "Existence results"

Автор: Grafiati

Опубліковано: 17 серпня 2022

Оновлено: 14 березня 2023

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Статті в журналах з теми "Existence results"

1

Stufken, John, Sung Y. Song, Kyoungah See, and Kenneth R. Driessel. "Polygonal designs: some existence and non-existence results." Journal of Statistical Planning and Inference 77, no. 1 (February 1999): 155–66. http://dx.doi.org/10.1016/s0378-3758(98)00188-8.

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2

Bolojan, Octavia, Gennaro Infante, and Radu Precup. "Existence results for systems with nonlinear coupled nonlocal initial conditions." Mathematica Bohemica 140, no. 4 (2015): 371–84. http://dx.doi.org/10.21136/mb.2015.144455.

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3

Bonafede, Salvatore. "Existence results for a class of semilinear degenerate elliptic equations." Mathematica Bohemica 128, no. 2 (2003): 187–98. http://dx.doi.org/10.21136/mb.2003.134032.

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4

Lai, T. C., and J. C. Yao. "Existence results for VVIP." Applied Mathematics Letters 9, no. 3 (May 1996): 17–19. http://dx.doi.org/10.1016/0893-9659(96)00024-9.

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5

Kružík, Martin, Ulisse Stefanelli, and Jan Zeman. "Existence results for incompressible magnetoelasticity." Discrete & Continuous Dynamical Systems - A 35, no. 6 (2015): 2615–23. http://dx.doi.org/10.3934/dcds.2015.35.2615.

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6

Motreanu, Dumitru, and Vicenţiu Rǎdulescu. "Existence Results For Inequality Problems." Numerical Functional Analysis and Optimization 21, no. 7-8 (January 2000): 869–84. http://dx.doi.org/10.1080/01630560008816991.

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7

Sango, Mamadou. "Magnetohydrodynamic turbulent flows: Existence results." Physica D: Nonlinear Phenomena 239, no. 12 (June 2010): 912–23. http://dx.doi.org/10.1016/j.physd.2010.01.009.

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8

Caso, Loredana, Paola Cavaliere, and Maria Transirico. "Existence results for elliptic equations." Journal of Mathematical Analysis and Applications 274, no. 2 (October 2002): 554–63. http://dx.doi.org/10.1016/s0022-247x(02)00287-1.

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9

Abel, R. J. R., Norman J. Finizio, and Malcolm Greig. "(3,6) GWhD(v)—existence results." Discrete Mathematics 261, no. 1-3 (January 2003): 3–26. http://dx.doi.org/10.1016/s0012-365x(02)00457-0.

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10

Deliu, A., and M. C. Spruill. "Existence results for refinement equations." Aequationes Mathematicae 59, no. 1 (February 2000): 20–37. http://dx.doi.org/10.1007/pl00000125.

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Дисертації з теми "Existence results"

1

GUARNOTTA, Umberto. "EXISTENCE RESULTS FOR SINGULAR CONVECTIVE ELLIPTIC PROBLEMS." Doctoral thesis, Università degli Studi di Palermo, 2021. http://hdl.handle.net/10447/524941.

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2

Murillo, Kelly Patricia. "Existence results for elliptic equations with singular terms." Doctoral thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/9888.

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Анотація:

Doutoramento em Matemática e Aplicações
Esta dissertação estuda em detalhe três problemas elípticos: (I) uma classe de equações que envolve o operador Laplaciano, um termo singular e nãolinearidade com o exponente crítico de Sobolev, (II) uma classe de equações com singularidade dupla, o expoente crítico de Hardy-Sobolev e um termo côncavo e (III) uma classe de equações em forma divergente, que envolve um termo singular, um operador do tipo Leray-Lions, e uma função definida nos espaços de Lorentz. As não-linearidades consideradas nos problemas (I) e (II), apresentam dificuldades adicionais, tais como uma singularidade forte no ponto zero (de modo que um "blow-up" pode ocorrer) e a falta de compacidade, devido à presença do exponente crítico de Sobolev (problema (I)) e Hardy-Sobolev (problema (II)). Pela singularidade existente no problema (III), a definição padrão de solução fraca pode não fazer sentido, por isso, é introduzida uma noção especial de solução fraca em subconjuntos abertos do domínio. Métodos variacionais e técnicas da Teoria de Pontos Críticos são usados para provar a existência de soluções nos dois primeiros problemas. No problema (I), são usadas uma combinação adequada de técnicas de Nehari, o princípio variacional de Ekeland, métodos de minimax, um argumento de translação e estimativas integrais do nível de energia. Neste caso, demonstramos a existência de (pelo menos) quatro soluções não triviais onde pelo menos uma delas muda de sinal. No problema (II), usando o método de concentração de compacidade e o teorema de passagem de montanha, demostramos a existência de pelo menos duas soluções positivas e pelo menos um par de soluções com mudança de sinal. A abordagem do problema (III) combina um resultado de surjectividade para operadores monótonos, coercivos e radialmente contínuos com propriedades especiais do operador de tipo Leray- Lions. Demonstramos assim a existência de pelo menos, uma solução no espaço de Lorentz e obtemos uma estimativa para esta solução.
This dissertation study mainly three elliptical problems: (I) a class of equations, which involves the Laplacian operator, a singular term and a nonlinearity with the critical Sobolev exponent, (II) a class of equations with double singularity, the critical Hardy-Sobolev exponent and a concave term and (III) a class of equations in divergent form, which involves a singular term, a Leray-Lions operator, and a function defined on Lorentz spaces. The nonlinearities considered in problems (I) and (II), bring additional difficulties which, as the strong singularity at zero (so blow-up may occur) and the lack of compactness due to the presence of a Sobolev critical exponent (problem (I)) and a Hardy-Sobolev critical exponent (problem (II)). In problem (III), the singularity implies that the standard definition of weak solution may not make sense. Therefore is necessary to introduce a special notion of weak solution on open subsets of the domain. Variational methods and Critical Point Theory techniques are used to prove the existence of solutions in the two first problems. In problem (I), our method combines Nehari's techniques, Ekeland's variational principle, minimax methods, a translation argument and integral estimates of the energy level. In this case, we prove the existence of (at least) four nontrivial solutions where at least one of them is sign-changing. In problem (II), we prove the existence of at least two positive solutions and a pair of sign-changing solutions, using the concentration-compactness method and the mountain pass theorem. The approach in problem (III) combines a surjectivity result for monotone, coercive and radially continuous operators with special properties of Leray-Lions operators. We prove the existence of at least one solution in a Lorentz space and obtain an estimative for the solution.

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3

Fialho, João Manuel Ferrão. "Existence, localization and multiplicity results for nonlinear and functional." Doctoral thesis, Universidade de Évora, 2012. http://hdl.handle.net/10174/15248.

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In this thesis several problems are addressed. The problems considered vary from second order problems up to high order problems where generaliza- tions to nth order are studied. Such problems range from problems without functional dependence up to problems where the functional dependence is featured both in the equation and on the boundary conditions. Functional boundary conditions include most of the classical conditions as multipoint cases, conditions with delay and/or advances, nonlocal or in- tegral, with maximum or minimum arguments,... Existence, nonexistence, multiplicity and localization results are then discussed in accordance with these conditions. The method used is the lower and upper solutions combined with di¤erent techniques (degree theory, Nagumo condition, iterative technique, Green s function) to obtain such results. Several applications are studied such as the periodic oscillations of the axis of a satellite and conjugate boundary value problems, to emphasize the applicability of the method used; RESUMO:Nesta tese, intitulada em português, Resultados de existência, localiza- ção e multiplicidade para problemas não lineares e funcionais de ordem su- perior com valores na fronteira , diferentes problemas são abordados. Estes problemas variam desde problemas de segunda ordem até problemas de or- dem superior, onde generalizações de ordem n são feitas e onde os problemas apresentados variam desde o caso em que não existe dependência funcional até aos em que esta dependência funcional está presente tanto na equação como nas condições de fronteira. Sobre estas condições, que incluem a maioria das condições clássicas, re- sultados de existência, não existência, multiplicidade e localização de solução são discutidos de acordo com estas condições. O método utilizado é o método da sub e sobre-solução combinado com diferentes técnicas. Várias aplicações são estudadas, nomeadamente as oscilações periódicas do eixo de um satélite e problemas conjugados, de forma a dar ênfase à aplicabilidade do método utilizado.

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4

Velichkov, Bozhidar. "Existence and regularity results for some shape optimization problems." Doctoral thesis, Scuola Normale Superiore, 2013. http://hdl.handle.net/11384/85690.

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Les problèmes d'optimisation de forme sont présents naturellement en physique, ingénierie, biologie, etc. Ils visent à répondre à différentes questions telles que:-A quoi une aile d'avion parfaite pourrait ressembler?-Comment faire pour réduire la résistance d'un objet en mouvement dans un gaz ou un fluide?-Comment construire une structure élastique de rigidité maximale?-Quel est le comportement d'un système de cellules en interaction?Pour des exemples précis et autres applications de l'optimisation de forme nous renvoyons à [20] et [69]. Ici, nous traitons les aspects mathématiques théoriques de l'optimisation de forme, concernant l'existence d'ensembles optimaux ainsi que leur régularité. Dans toutes les situations que l'on considère, la fonctionnelle dépend de la solution d'une certaine équation aux dérivées partielles posée sur la forme inconnue. Nous allons parfois se référer à cette fonction comme une fonction d'état.Les fonctions d'état les plus simples, mais qui apparaissent dans beaucoup de problèmes, sont données par les solutions des équations -Δw = 1 et -Δu = λu,qui sont liées à la torsion et aux modes d'oscillation d'un objet donné. Notre étude se concentrera principalement sur ces fonctionnelles de formes, impliquant la torsion et le spectre.[20] D. Bucur, G. Buttazzo: Variational Methods in Shape Optimization Problems. Progress in Nonlinear Differential Equations 65, Birkhauser Verlag, Basel (2005).[69] A. Henrot, M. Pierre: Variation et optimisation de formes: une analyse geometrique. Springer-Berlag, Berlin, 2005
The shape optimization problems naturally appear in engineering and biology. They aim to answer questions as:-What a perfect wing may look like?-How to minimize the resistance of a moving object in a gas or a fluid?-How to build a rod of maximal rigidity?-What is the behaviour of a system of cells?The shape optimization appears also in physics, mainly in electrodynamics and in the systems presenting both classical and quantum mechanics behaviour. For explicit examples and furtheraccount on the applications of the shape optimization we refer to the books [20] and [69]. Here we deal with the theoretical mathematical aspects of the shape optimization, concerning existence of optimal sets and their regularity. In all the practical situations above, the shape of the object in study is determined by a functional depending on the solution of a given partial differential equation. We will sometimes refer to this function as a state function.The simplest state functions are provided by solutions of the equations−∆w = 1 and −∆u = λu,which usually represent the torsion rigidity and the oscillation modes of a given object. Thus our study will be concentrated mainly on the situations, in which these state functions appear,i.e. when the optimality is intended with respect to energy and spectral functionals. [20] D. Bucur, G. Buttazzo: Variational Methods in Shape Optimization Problems. Progress in Nonlinear Differential Equations 65, Birkhauser Verlag, Basel (2005).[69] A. Henrot, M. Pierre: Variation et optimisation de formes: une analyse geometrique. Springer-Berlag, Berlin, 2005

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5

Velichkov, Bozhidar. "Existence and regularity results for some shape optimization problems." Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENM088/document.

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Анотація:

Les problèmes d'optimisation de forme sont présents naturellement en physique, ingénierie, biologie, etc. Ils visent à répondre à différentes questions telles que:-A quoi une aile d'avion parfaite pourrait ressembler?-Comment faire pour réduire la résistance d'un objet en mouvement dans un gaz ou un fluide?-Comment construire une structure élastique de rigidité maximale?-Quel est le comportement d'un système de cellules en interaction?Pour des exemples précis et autres applications de l'optimisation de forme nous renvoyons à [20] et [69]. Ici, nous traitons les aspects mathématiques théoriques de l'optimisation de forme, concernant l'existence d'ensembles optimaux ainsi que leur régularité. Dans toutes les situations que l'on considère, la fonctionnelle dépend de la solution d'une certaine équation aux dérivées partielles posée sur la forme inconnue. Nous allons parfois se référer à cette fonction comme une fonction d'état.Les fonctions d'état les plus simples, mais qui apparaissent dans beaucoup de problèmes, sont données par les solutions des équations -Δw = 1 et -Δu = λu,qui sont liées à la torsion et aux modes d'oscillation d'un objet donné. Notre étude se concentrera principalement sur ces fonctionnelles de formes, impliquant la torsion et le spectre.[20] D. Bucur, G. Buttazzo: Variational Methods in Shape Optimization Problems. Progress in Nonlinear Differential Equations 65, Birkhauser Verlag, Basel (2005).[69] A. Henrot, M. Pierre: Variation et optimisation de formes: une analyse geometrique. Springer-Berlag, Berlin, 2005
The shape optimization problems naturally appear in engineering and biology. They aim to answer questions as:-What a perfect wing may look like?-How to minimize the resistance of a moving object in a gas or a fluid?-How to build a rod of maximal rigidity?-What is the behaviour of a system of cells?The shape optimization appears also in physics, mainly in electrodynamics and in the systems presenting both classical and quantum mechanics behaviour. For explicit examples and furtheraccount on the applications of the shape optimization we refer to the books [20] and [69]. Here we deal with the theoretical mathematical aspects of the shape optimization, concerning existence of optimal sets and their regularity. In all the practical situations above, the shape of the object in study is determined by a functional depending on the solution of a given partial differential equation. We will sometimes refer to this function as a state function.The simplest state functions are provided by solutions of the equations−∆w = 1 and −∆u = λu,which usually represent the torsion rigidity and the oscillation modes of a given object. Thus our study will be concentrated mainly on the situations, in which these state functions appear,i.e. when the optimality is intended with respect to energy and spectral functionals. [20] D. Bucur, G. Buttazzo: Variational Methods in Shape Optimization Problems. Progress in Nonlinear Differential Equations 65, Birkhauser Verlag, Basel (2005).[69] A. Henrot, M. Pierre: Variation et optimisation de formes: une analyse geometrique. Springer-Berlag, Berlin, 2005

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6

Platino, Vincenzo. "Existence, regularity and testability results in economic models with externalities." Doctoral thesis, Universita degli studi di Salerno, 2012. http://hdl.handle.net/10556/1312.

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2008 - 2009
This thesis deals with economic models in the presence of externalities. The thesis consists of three chapters. In chapter 1, we consider a general model of production economies with consumption and production externalities. That is, the choices of all agents (households and firms) affect individual consumption sets, individual preferences and production technologies. Describing equlibria in terms of first order conditions and market clearing conditions, and using a homotopy, under differentiability and boundary conditions, we prove the non-emptiness and compactness of the set of competitive equilibria with consumptions and prices strictly positive. In chapter 2 we consider a general model of private ownership economies with consumption and production externalities. Showing by an example that basic assumptions are not enough to guarantee a regularity result in the space of initial endowments, we provide sufficient conditions for the regularity in the space of endowments and transformation functions. In chapter 3 we study the testability implications of public versus private consumption in collective models of group consumption. To the contrary at the previous literature, we find that assumptions regarding the public or private nature of specific goods do have testability implications, even if one only observes the aggregate group consumption. In fact, these testability implications apply as soon as the analysis includes three goods and four observations. In our opinion, our revealed preference approach obtains stronger testability conclusions because it focuses on conditions which involve personalized prices and personalized quantities, although we do not require that personalized prices and personalized quantities are observable. [edited by author]
VIII n.s.

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7

Malchiodi, Andrea. "Existence and multiplicity results for some problems in Riemannian geometry." Doctoral thesis, SISSA, 2000. http://hdl.handle.net/20.500.11767/4627.

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8

Manicom, Gray Thomas. "Existence results for a class of semi-linear initial value problems." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/63288.

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The main result of this thesis is an existence result for parabolic semi-linear problems. This is done by reformulating the semi-linear problem as an abstract Cauchy problem ut(t) = Au(t) + f(t; u(t)), t > 0 u(0) = u0 (1) for u0 2 X, where X is a Banach space. We then develop and use the theory of compact semigroups to prove an existence result. In order to make this result applicable, we give a characterization of compact semigroups in terms of its resolvent operator and continuity in the uniform operator topology. Thus, using the theory of analytic semigroups, we are able to determine under what conditions on A a solution to (1) exists. Furthermore, we consider the asymptotic behaviour and regularity of such solutions. By developing perturbation theory, we are easily able to apply our existence result to a larger class of problems. We then demonstrate these results with an example. This work is signi cant in providing a novel approach to a group of previously established results. The content can be considered pure mathematics, but it is of signi cant importance in real world situations. The structure of the thesis, and the choice of certain de nitions, lends itself to be easily understood and interpreted in the light of these real world situations and is intended to be easily followed by an applied mathematician. An important part of this process is to develop the problem in a real Hilbert space and then to consider the complexi cation of the problem in order to reset it in a complex Hilbert space, in which we can apply the theory of analytic semigroups. A large number of real world problems fall into the class of problems discussed here, not only in biology as demonstrated, but also in physics, chemistry, and elsewhere.
Dissertation (MSc)--University of Pretoria, 2017.
Mathematics and Applied Mathematics
MSc
Unrestricted

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9

Sfecci, Andrea. "Some existence results for boundary value problems : a promenade along resonance." Doctoral thesis, SISSA, 2012. http://hdl.handle.net/20.500.11767/4703.

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I present many existence result to many boundary value problems, in particular periodic problems and Neumann elliptic problems. The results use the method of the topological degree theory. In the thesis different problems are treated: planar systems, systems with a singularity, impact oscillators, coupled oscillators and radial elliptic problems.

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10

Sauer, Martin [Verfasser]. "Existence and Uniqueness Results for Randomly Forced Generalized Newtonian Fluids / Martin Sauer." München : Verlag Dr. Hut, 2013. http://d-nb.info/1034003283/34.

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Книги з теми "Existence results"

1

Nielsen, Lars Tyge. Existence of equilibrium in CAPM: Further results. Fontainbleau: INSEAD, 1990.

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2

Velichkov, Bozhidar. Existence and Regularity Results for Some Shape Optimization Problems. Pisa: Scuola Normale Superiore, 2015. http://dx.doi.org/10.1007/978-88-7642-527-1.

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3

Enrico, Serra, ed. Semilinear elliptic equations for beginners: Existence results via the variational approach. London: Springer Verlag, 2011.

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4

Orlik, Lyubov', and Galina Zhukova. Operator equation and related questions of stability of differential equations. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1061676.

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The monograph is devoted to the application of methods of functional analysis to the problems of qualitative theory of differential equations. Describes an algorithm to bring the differential boundary value problem to an operator equation. The research of solutions to operator equations of special kind in the spaces polutoratonny with a cone, where the limitations of the elements of these spaces is understood as the comparability them with a fixed scale element of exponential type. Found representations of the solutions of operator equations in the form of contour integrals, theorems of existence and uniqueness of such solutions. The spectral criteria for boundedness of solutions of operator equations and, as a consequence, sufficient spectral features boundedness of solutions of differential and differential-difference equations in Banach space. The results obtained for operator equations with operators and work of Volterra operators, allowed to extend to some systems of partial differential equations known spectral stability criteria for solutions of A. M. Lyapunov and also to generalize theorems on the exponential characteristic. The results of the monograph may be useful in the study of linear mechanical and electrical systems, in problems of diffraction of electromagnetic waves, theory of automatic control, etc. It is intended for researchers, graduate students functional analysis and its applications to operator and differential equations.

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5

Kondrat'ev, Sergey. Theory and practice of personalized learning. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1098272.

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The monograph presents the psychological theory and organization of personalized learning in general education schools. The concept of integrative subjectivity of a person as a form of reflexive and areflexive self-existence is considered as the psychological basis of personalized learning. The author characterizes the personality and the social individual in the light of the humanitarian Christian paradigm: reveals the phenomenology of integrative subjectivity, its structural organization, levels and forms of development of the individual and the social individual. From the standpoint of the Christian psychology of education, the general psychological and socio-psychological aspects of personalized learning are revealed, the psychological typification of students and teachers is justified, the extraordinary pedagogical interaction as a psychological mechanism of personalized learning is presented, the experimental construction of psychological types of primary school students based on the perception of educational material, as well as the typological features of teachers. Technologies of personalized learning are presented. The monograph reflects the results of many years of theoretical and experimental research of the author. It is of interest to seminarians, students, postgraduates of Orthodox educational institutions, students of Higher theological courses, faculties of advanced training and retraining, as well as philosophers, psychologists, teachers, social workers, and specialists in the field of education.

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6

Kazakov, Evgeniy. The soul of Russian culture. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1223289.

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The monograph is devoted to the study of one of the "eternal" philosophical problems: the soul as a metaphysical essence of Russian culture, its structure, functioning and genesis. Special emphasis is placed on the analysis of the turning point for the modern Russian history of the Silver Age, which set the direction of events up to the present time. The study is the result of many years of work by the author, which is reflected in the books "The Genesis of spiritual life", "Soul: the metaphysics of self-determination", "Homo nudes", "The Heartbreaker". It is addressed to teachers, graduate students, students and anyone interested in the metaphysics of the existence of Russian culture.

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7

Billé, Franck, Sanjyot Mehendale, and James W. Lankton. The Maritime Silk Road. Nieuwe Prinsengracht 89 1018 VR Amsterdam Nederland: Amsterdam University Press, 2022. http://dx.doi.org/10.5117/9789463722247.

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The Maritime Silk Road foregrounds the numerous networks that have been woven across oceanic geographies, tying world regions together often far more extensively than land-based routes. On the strength of the new data which has emerged in the last two decades in the form of archaeological findings, as well as new techniques such as GIS modeling, the authors collectively demonstrate the existence of a very early global maritime trade. From architecture to cuisine, and language to clothing, evidence points to early connections both within Asia and between Asia and other continents—well before European explorations of the Global South. The human stories presented here offer insights into both the extent and limits of this global exchange, showing how goods and people traveled vast distances, how they were embedded in regional networks, and how local cultures were shaped as a result.

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8

Haase, Christian, Andreas Paffenholz, Lindsay C. Piechnik, and Santos Francisco. Existence of Unimodular Triangulations-Positive Results. American Mathematical Society, 2021.

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9

Velichkov, Bozhidar. Existence and Regularity Results for Some Shape Optimization Problems. Scuola Normale Superiore, 2015.

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10

Velichkov, Bozhidar. Existence and Regularity Results for Some Shape Optimization Problems. Edizioni della Normale, 2015.

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Частини книг з теми "Existence results"

1

Colding, Tobias, and William Minicozzi. "Existence results." In A Course in Minimal Surfaces, 133–62. Providence, Rhode Island: American Mathematical Society, 2011. http://dx.doi.org/10.1090/gsm/121/04.

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Feltrin, Guglielmo. "Existence Results." In Positive Solutions to Indefinite Problems, 171–94. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-94238-4_6.

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Boyarsky, Abraham, and Paweł Góra. "Other Existence Results." In Laws of Chaos, 110–26. Boston, MA: Birkhäuser Boston, 1997. http://dx.doi.org/10.1007/978-1-4612-2024-4_6.

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Okuguchi, Koji, and Ferenc Szidarovszky. "Existence and Uniqueness Results." In Lecture Notes in Economics and Mathematical Systems, 14–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-662-02622-9_3.

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Cercignani, Carlo, Reinhard Illner, and Mario Pulvirenti. "Existence and Uniqueness Results." In The Mathematical Theory of Dilute Gases, 133–66. New York, NY: Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4419-8524-8_6.

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Capatina, Anca. "Existence and Uniqueness Results." In Advances in Mechanics and Mathematics, 31–82. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10163-7_4.

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Okuguchi, Koji, and Ferenc Szidarovszky. "Existence and Uniqueness Results." In The Theory of Oligopoly with Multi-Product Firms, 21–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60169-9_3.

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Marichal, Jean-Luc, and Naïm Zenaïdi. "Uniqueness and Existence Results." In A Generalization of Bohr-Mollerup's Theorem for Higher Order Convex Functions, 21–31. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-95088-0_3.

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AbstractIn this chapter, we establish Theorems 10.1007/978-3-030-95088-0_1#FPar4 and 10.1007/978-3-030-95088-0_1#FPar5 and show that, under the assumptions of these theorems, the sequence $$n\mapsto f^p_n[g]$$ n ↦ f n p [ g ] converges uniformly on any bounded subset of $$\mathbb {R}_+$$ ℝ + . We also discuss the particular case where the sequence n↦g(n) is summable. Lastly, we provide historical notes on Krull-Webster’s theory and some of its improvements.

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Feireisl, Eduard, and Antonin Novotný. "Existence Theory: Main Results." In Nečas Center Series, 195–201. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-94793-4_9.

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Khan, Akhtar A., Christiane Tammer, and Constantin Zălinescu. "Existence Results for Minimal Points." In Vector Optimization, 349–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54265-7_9.

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Тези доповідей конференцій з теми "Existence results"

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CANDITO, P. "EXISTENCE RESULTS FOR NONLINEAR HEMIVARIATIONAL INEQUALILTIES." In Proceedings of the 5th International ISAAC Congress. WORLD SCIENTIFIC, 2009. http://dx.doi.org/10.1142/9789812835635_0089.

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CID, J. ÁNGEL, and RODRIGO L. POUSO. "EXISTENCE RESULTS FOR DISCONTINUOUS ORDINARY DIFFERENTIAL EQUATIONS." In Proceedings of the International Conference on Differential Equations. WORLD SCIENTIFIC, 2005. http://dx.doi.org/10.1142/9789812702067_0026.

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MINHÓS, F. M., and I. SANTOS. "EXISTENCE AND NON-EXISTENCE RESULTS FOR TWO-POINT BOUNDARY VALUE PROBLEMS OF HIGHER ORDER." In Proceedings of the International Conference on Differential Equations. WORLD SCIENTIFIC, 2005. http://dx.doi.org/10.1142/9789812702067_0032.

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Akdim, Youssef, and Abdelhafid Salmani. "Existence results for nonlinear anisotropic elliptic unilateral problems." In 2ND INTERNATIONAL CONFERENCE ON APPLIED MATHEMATICS, ICAM’2018. Author(s), 2019. http://dx.doi.org/10.1063/1.5090625.

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XIE, SHASHA, and ZHENKUN HUANG. "EXISTENCE RESULTS FOR IMPULSIVE BAM NETWORKS ON TIME SCALES." In Proceedings of the QL&SC 2012. WORLD SCIENTIFIC, 2012. http://dx.doi.org/10.1142/9789814401531_0048.

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Benedetti, Irene, Francesco Mugelli, and Pietro Zecca. "Existence results for nonlinear variational inequalities via topological methods." In INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2009: (ICCMSE 2009). AIP, 2012. http://dx.doi.org/10.1063/1.4772181.

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Wang, Wei, Yali Zhao, and Lin Zhu. "On existence results of generalized strong vector equilibrium problem." In 2013 2nd International Symposium on Instrumentation & Measurement, Sensor Network and Automation (IMSNA). IEEE, 2013. http://dx.doi.org/10.1109/imsna.2013.6743317.

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Wang, Wei, Yali Zhao, and Lin Zhu. "On existence results of generalized strong vector equilibrium problem." In 2013 2nd International Symposium on Instrumentation & Measurement, Sensor Network and Automation (IMSNA). IEEE, 2013. http://dx.doi.org/10.1109/imsna.2013.6743325.

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Agilan, K., and V. Parthiban. "Existence results for fuzzy fractional Volterra integro differential equations." In 2ND INTERNATIONAL CONFERENCE ON MATHEMATICAL TECHNIQUES AND APPLICATIONS: ICMTA2021. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0108987.

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Freiling, G., and A. Hochhaus. "Existence and convergence results for periodic Riccati differential equations." In 1999 European Control Conference (ECC). IEEE, 1999. http://dx.doi.org/10.23919/ecc.1999.7099867.

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Звіти організацій з теми "Existence results"

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Hesselt, Matteo, Jun Hyuk, Hado van Hassel, and David Heaphy. Some Existence Results for Internal Deep RL Architecture. Web of Open Science, April 2020. http://dx.doi.org/10.37686/ejai.v1i1.32.

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Clément-Fontaine, Mélanie, Roberto Di Cosmo, Bastien Guerry, Patrick Moreau, and François Pellegrini. Encouraging a wider usage of software derived from research. Ministère de l'enseignement supérieur et de la recherche, November 2019. http://dx.doi.org/10.52949/4.

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Software is a hybrid object in the world research as it is equally a driving force (as a tool), a result (as proof of the existence of a solution) and an object of study (as an artefact). This specific status means we need to define strategies, tools and procedures which are adapted to the various issues it raises. These include the citation of contributions to software design and production, the reproducibility of research results involving software and the wider usage and long-term sustainability of the software heritage created. This opportunity note by the Committee for Open Science's Free Software and Open Source Project Group describes the issues at stake and formulates actionable recommendations.

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Baader, Franz. Terminological cycles in a description logic with existential restrictions. Technische Universität Dresden, 2002. http://dx.doi.org/10.25368/2022.120.

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Cyclic definitions in description logics have until now been investigated only for description logics allowing for value restrictions. Even for the most basic language FL₀, which allows for conjunction and value restrictions only, deciding subsumption in the presence of terminological cycles is a PSPACE-complete problem. This report investigates subsumption in the presence of terminological cycles for the language EL, which allows for conjunction and existential restrictions. In contrast to the results for FL₀, subsumption in EL remains polynomial, independent of wether we use least fixpoint semantics, greatest fixpoint semantics, or descriptive semantics. These results are shown via a characterization of subsumption through the existence of certain simulation relations between nodes of the description graph associated with a given cyclic terminology.

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Mykhayliv, Natalya. THE SUBJECT OF OF “VOGUE” AND “HARPER’S BAZAAR” MAGAZINES. Ivan Franko National University of Lviv, February 2021. http://dx.doi.org/10.30970/vjo.2021.49.11066.

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In the article according to the theory of the subject, patterns of the existence and genesis of the subject of “Vogue” and “Harper’s Bazaar” (USA) magazines was analysed, perspective of the emergence of new subjects was established, classification of the current subjects into universal and synthetic was suggested and some regularities of authorial creation of new subjects was examined. The main objective of the study is to identify patterns of existence of actual and formation of new topics in the Means of Mass Communication on the example of “Vogue” and “Harper’s Bazaar” magazines. In studying of the empiric basis of the research the method of observation is applied; in finding common themes for both publications – a comparative method was used. The method of analysis was used in the decomposition of topics into separate topics; in isolation from the features of the topic, uncharacteristic of a journalistic work – abstraction was applied. The elucidation that the subject appears as a formal verbal expression of a set of homogeneous topics was done by applying the method of formalization. The main results of the research are: obtaining the new classification of topics of “Vogue” and “Harper’s Bazaar” magazines; identification of a significant manifestation of universal themes on the pages of publications; establishment of the basic subjective (deontological) bases of formation of new subjects. A theoretical level of their knowledge will enrich science, equip practice, promote individual and world harmony.

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Benavente, José Miguel, and Pluvia Zuñiga. The Effectiveness of Innovation Policy and the Moderating Role of Market Competition: Evidence from Latin American Firms. Inter-American Development Bank, September 2021. http://dx.doi.org/10.18235/0003655.

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This paper evaluates whether market competition matters for the effectiveness of innovation policies. Using data for manufacturing firms in Chile and Peru, we implement propensity matching techniques combined with differences-in-differences estimation to evaluate the impact of innovation subsidies on the post-treatment innovation investment effort of firms and test whether such impact differs according to the intensity of competition. We corroborate the existence of crowding-in effects in beneficiaries when compared to a control group of untreated firms. The subsidy impact is found either only significant in highly competitive sectors or larger in more competition-intensive industries -compared to low competition ones. Thus, we confirm that market competition plays a moderating role in the effectiveness of innovation policies to stimulate firm innovation investment. The results are robust to different matching and estimation methods and suggest, therefore, the importance of considering market contexts in the design of innovation policies.

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TOTROVA, Z. H. THE TOPIC OF OBJECTIVITY OF KNOWLEDGE AS A SOCIOCULTURAL PROBLEM. Science and Innovation Center Publishing House, April 2022. http://dx.doi.org/10.12731/2077-1770-2021-14-1-3-14-21.

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Анотація:

The actualization of this topic is explained by modern information technologies, which center the question of knowledge, as such, before its practical application. The purpose of the article is to analyze the topic of objectivity of knowledge, as a sociocultural problem, involving consideration of the relationship of various forms of skepticism with the sociocultural context. Research methods are philosophical and general logical. Research results. Pyrrhonian skepticism reflects the personal, socio-political and economic crisis of the Hellenistic era. The complete and consistent development of the views of extreme skeptics in practice turns into an apology for force or chaos. The time of M. Montaigne is characterized by the conjugation of historical optimism with paradigm instability, the struggle of ideas and socio-cultural structures for the right to exist. Hence the appeal to the subject, as to the basis that determines the stability of social and personal existence.

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Hulata, Gideon, and Graham A. E. Gall. Breed Improvement of Tilapia: Selective Breeding for Cold Tolerance and for Growth Rate in Fresh and Saline Water. United States Department of Agriculture, November 2003. http://dx.doi.org/10.32747/2003.7586478.bard.

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The main objective of this project was to initiate a breeding program to produce cold-tolerant and salinity-tolerant synthetic breeds of tilapia, from a base population consisting of a four-species hybrid population created under an earlier BARD project. A secondary objective was to estimate genetic parameters for the traits growth rate under fresh- and salt-water and for cold tolerance. A third objective was to place quantitative trait loci that affect these traits of interest (e.g., growth rate in fresh-water, salt-water and cold tolerance) on the growing linkage map of primarily microsatellite loci. We have encountered fertility problems that were apparently the result of the complex genetic structure of this base population. The failure in producing the first generation of the breeding program has forced us to stop the intended breeding program. Thus, upon approval of BARD office, this objective was dropped and during the last year we have focused on the secondary objective of the original project during the third year of the project, but failed to perform the intended analysis to estimate genetic parameters for the traits of interest. We have succeeded, however, to strengthen the earlier identification of a QTL for cold tolerance by analyzing further segregating families. The results support the existence of a QTL for cold tolerance on linkage group 15, corresponding to UNH linkage group 23. The results also indicate a QTL for the same trait on linkage group 12, corresponding to UNH linkage group 4.

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Goya, Daniel. Marshallian and Jacobian Externalities in Creative Industries. Inter-American Development Bank, January 2022. http://dx.doi.org/10.18235/0003992.

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Marshallian externalities are the benefits obtained by a sector due to geographical agglomeration, and Jacobian effects are spillovers related to the novel combinations that can occur in cities with diversified economic activities. This paper argues that most of the quantitative literature on creative industries is asking whether they are a source of Marshallian or Jacobian effects, inasmuch as a stronger creative sector is a direction of diversification that is likely to have positive spillovers to the rest of the economy. Exploring both questions under a common framework, the results are consistent with the existence of Marshallian but not of Jacobian effects, which calls to caution when making policy suggestions regarding the sector. The degree of specialization in creative sectors is associated with higher sales and a higher number of rms in those sectors, albeit at a decreasing rate. A similar relationship is found for specialization in creative occupations and the incomes of those workers. Though there is no evidence of spillovers from creative industries in general to the rest of the economy, analyses at a more disaggregated level could produce different results and useful insights for policy.

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Schulz, Jan, Daniel Mayerhoffer, and Anna Gebhard. A Network-Based Explanation of Perceived Inequality. Otto-Friedrich-Universität, 2021. http://dx.doi.org/10.20378/irb-49393.

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Across income groups and countries, the public perception of economic inequality and many other macroeconomic variables such as inflation or unemployment rates is spectacularly wrong. These misperceptions have far-reaching consequences, as it is perceived inequality, not actual inequality informing redistributive preferences. The prevalence of this phenomenon is independent of social class and welfare regime, which suggests the existence of a common mechanism behind public perceptions. We propose a network-based explanation of perceived inequality building on recent advances in random geometric graph theory. The literature has identified several stylised facts on how individual perceptions respond to actual inequality and how these biases vary systematically along the income distribution. Our generating mechanism can replicate all of them simultaneously. It also produces social networks that exhibit salient features of real-world networks; namely, they cannot be statistically distinguished from small-world networks, testifying to the robustness of our approach. Our results, therefore, suggest that homophilic segregation is a promising candidate to explain inequality perceptions with strong implications for theories of consumption behaviour.

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Zannella, Marina, and Alessandra De Rose. Fathers’ and mothers’ enjoyment of childcare: the role of multitasking. Verlag der Österreichischen Akademie der Wissenschaften, June 2021. http://dx.doi.org/10.1553/populationyearbook2021.res3.3.

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Using data from the latest edition of the Italian Time Use Survey (ITUS, 2013–2014), we analyse 31,309 childcare episodes to investigate the relationship betweenmultitasking (i.e., the combination of childcare with housework tasks) and parents’enjoyment of the time they spent on childcare, with a gender perspective. To this end,we rely on information from the episode enjoyment scores the respondents used toevaluate the degree of (un)pleasantness associated with the different activities theyrecorded in a daily diary. These episode enjoyment scores are a novelty in the ITUS,and provide a unique measure of the respondents’ momentary assessments of theirsubjective well-being. Our results highlight the existence of a negative relationshipbetween multitasking and parental well-being when spending time on childcare forboth mothers and fathers, regardless of the nature of the childcare activity theywere performing (i.e., routine or recreational childcare). Our findings add to priorresearch by shedding new light on the role of multitasking as a relevant contextualcharacteristic of care that affects the well-being of fathers, as well as of mothers.

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