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Published: 10 December 2022
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1

Sturman, Paul John. "Control of acid rock drainage from mine tailings through the addition of dissolved organic carbon." Diss., Montana State University, 2004. http://etd.lib.montana.edu/etd/2004/sturman/SturmanP1204.pdf.

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2

Marin, Laurent. "Bornes dynamiques pour des opérateurs de Schrödinger quasi-périodiques." Phd thesis, Université d'Orléans, 2009. http://tel.archives-ouvertes.fr/tel-00482512.

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Nous nous intéressons dans ce travail à la dynamique des opérateurs de Schrödinger unidimensionnels, discrets, associés à un potentiel sturmien quasi-périodique. Le résultat principal de cette thèse est une borne supérieure pour les exposants de transport qui mesurent la vitesse de propagation du système. Cette borne, valide pour presque tous les potentiels sturmiens, est sous balistique pour une force de couplage suffisante. La validité de la borne est couplée à une condition diophantienne liée au nombre irrationnel qui définit le potentiel. Cette condition est vraie presque sûrement. Nous exhibons par ailleurs un exemple d'irrationnel pour lequel une borne supérieure sous balistique est impossible indépendamment de la force de couplage. Nous faisons l'étude de la dimension fractale du spectre de l'opérateur qui minore sous certaines conditions les exposants de transport. Nous obtenons une nouvelle borne inférieure pour la dimension de boîte du spectre grâce aux propriétés connues sur la forme du pseudo spectre. Les restrictions pour obtenir une borne dynamique à partir de notre résultat sont d'avoir une condition initiale cyclique standard et que le potentiel soit associé à un irrationnel à densité bornée. Enfin dans la dernière partie de ce travail, nous démontrons que le spectre de l'opérateur associé au nombre d'argent ß = [2, 2, . . . ] possède une structure hyperbolique. L'expression du pseudo spectre peut être vu comme un système dynamique. Nous conjuguons ledit système à une dynamique symbolique abstraite selon la méthode dite des partitions de Markov. Le système se comporte comme un fer à cheval de Smale. Nous dérivons de l'hyperbolicité des propriétés pour les dimensions fractales du spectre. Dimensions dont l'attrait dynamique a été rappelé dans la partie précédente. Nous déduisons notamment l'égalité des dimensions de Hausdorff et de boîte pour cet opérateur.
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3

Hillman, Chris. "Sturmian dynamical systems /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/5806.

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4

Rafaeli, Fernando Rodrigo [UNESP]. "Teorema de Sturm e zeros de polinômios ortogonais." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/94295.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Neste trabalho estudamos o Teorema de Sturm para zeros de soluções de equações diferenciais lineares de segunda ordem e suas extensões. Estes resultados clássicos são aplicados para análise de monotonicidade e convexidade de zeros de polinômios ortogonais clássicos.
We study Sturm's theorem on zeros of solution of linear second-order differential equations as well as its extension. These classical results are applied to analyze monotonicity and convexity of zeros of classical orthogonal polynomials.
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5

Ayaz, Ulaş. "Sigma-delta quantization and Sturmian words." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/14203.

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In this thesis, our main focus is Sigma-Delta quantization schemes. These are commonly used in state-of-art Analog-to-digital conversion technology. Their main advantage is the ease of implementation and more importantly their insensitivity to certain circuit imperfections. When we compare sigma-delta scheme with pulse-code modulation (PCM), sigma-delta is inferior in terms of rate distortion because an N-bit kth order sigma-delta quantizer produces an approximation with the error of order O(N-k) whereas the corresponding N-bit PCM scheme has accuracy of O(2−N)). However, this is a raw estimate of the actual rate-distortion characteristic of sigma-delta as one can further compress the bitstreams obtained via sigma-delta quantization. Even though this observation was made earlier in [10] under certain assumptions, to our knowledge, it was not investigated fully. In this thesis, such an investigation is made for first-order sigma-delta quantizers by using some results from symbolic dynamics literature on “Sturmian words”. Surprisingly, it turns out that the approximation error is a function of the “actual bit-rate”, i.e., the bit-rate after compressing an N-bit first-order sigma-delta encoding. In addition, in this thesis, we will introduce a new setup for sampling a bandlimited function and then quantizing these samples via first-order sigma-delta scheme. This simple but surprisingly efficient technique will allow us to get a better bound for the approximation rate of sigma-delta schemes and it will allow us to apply the derived results for compression of the bitstreams.
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6

Uscka-Wehlou, Hanna. "Digital lines, Sturmian words, and continued fractions." Doctoral thesis, Uppsala : Matematiska institutionen, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-107274.

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7

Day, Henry Clive. "Floquet calculations of atomic photo-electron spectra in intense laser fields." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/4709/.

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We present the results of Floquet calculations of rates of photo-detachment from a short-range three-dimensional model atom in an intense high-frequency laser field. We find that beyond a certain intensity the atom becomes progressively more stable against ionisation and that at this intensity the ATI spectrum exhibits a plateau of the kind that has recently been reported in the literature [101]. We also discuss the angular distribution of the photo- electrons and examine the special case of a laser-induced degeneracy in the frequency-intensity plane. In the Floquet method one represents the time-dependent Schrodinger equation by an infinite series of coupled time-independent equations, although in practice one must truncate these to a system of finite size. We study the consequences of this truncation by performing a series of calculations for the rate of (resonant) multiphoton detachment from a one-dimensional model atom in a laser field. We find that if the wavefunction is modified to take full account of the truncation then the number of equations which must be retained in order to obtain accurate results is significantly reduced. In performing a Floquet calculation for a real atomic system it is generally assumed that the atom remains at all times in a single diabatic Floquet state, rather than in a superposition of such states. By constructing a suitable two- state model we investigate the validity of this approximation and discuss the usefulness of the Floquet method in modelling an actual experiment. We present results for the multiphoton ionisation of H(1s) by a monochromatic circularly polarised field and by a linearly polarised bichromatic field of commensurable frequencies. In the monochromatic case we draw qualitative comparisons with the predictions of Keldysh theory and use the concept of a propensity rule to explain why the angular distributions remain essentially perturbative at high intensities. In the bichromatic case we study the structure of the ATI spectrum and in particular the role played by a relative phase. The angular distributions are found to be strongly affected by the low- frequency field even when its intensity is too small to cause any appreciable ionisation of the system.
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8

Glen, Amy. "On Sturmian and Episturmian words and related topics." Click here to access, 2006. http://thesis.library.adelaide.edu.au/public/adt-SUA20060426.164255/index.html.

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9

Anagnostopoulou, Vasiliki. "Sturmian Measures and Stochastic Dominance in Ergodic Optimization." Thesis, Queen Mary, University of London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.522324.

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10

Risley, Rebecca N. "A Generalization of Sturmian Sequences: Combinatorial Structure and Transcendence." Thesis, University of North Texas, 1998. https://digital.library.unt.edu/ark:/67531/metadc278440/.

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We investigate a class of minimal sequences on a finite alphabet Ak = {1,2,...,k} having (k - 1)n + 1 distinct subwords of length n. These sequences, originally defined by P. Arnoux and G. Rauzy, are a natural generalization of binary Sturmian sequences. We describe two simple combinatorial algorithms for constructing characteristic Arnoux-Rauzy sequences (one of which is new even in the Sturmian case). Arnoux-Rauzy sequences arising from fixed points of primitive morphisms are characterized by an underlying periodic structure. We show that every Arnoux-Rauzy sequence contains arbitrarily large subwords of the form V^2+ε and, in the Sturmian case, arbitrarily large subwords of the form V^3+ε. Finally, we prove that an irrational number whose base b-digit expansion is an Arnoux-Rauzy sequence is transcendental.
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11

Granados, Castro Carlos Mario. "Application of Generalized Sturmian Basis Functions to Molecular Systems." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0041/document.

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Dans cette thèse nous implémentons une approche Sturmienne, qui se sert de fonctions Sturmiennes généralisées (GSFs, en anglais), pour étudier l'ionisation de molécules par collisions de photons ou d'électrons. Comme l'Hamiltonian de la cible est non central, la description de l'ionisation des molécules n'est pas simple. En plus, puisque l'orientation spatiale de la molécule n'est généralement pas déterminée lors des expériences, une question importante à considérer est l'orientation aléatoire de la cible. Dans la littérature, des nombreuses méthodes théoriques ont été proposées pour traiter les molécules ; néanmoins, la plupart sont adaptées pour étudier, principalement, des états liés. Une description précise des états non-liés (continuum) des molécules reste un défi. Ici, nous proposons d'attaquer le problème avec les GSFs qui ont, par construction, un comportement asymptotique approprié au système étudié. Cette propriété permet de faire des calculs d'ionisation de façon plus efficace. Dans une première partie, nous validons l'implémentation de notre approche Sturmienne par l'étude de la photo-ionisation (PI) d'atomes. Différents potentiels effectifs sont utilisés pour décrire l'interaction de l'électron éjecté avec la cible ionisée. Les sections efficaces de PI sont calculées dans les jauges de longueur et de vitesse. Pour l'atome d'hydrogène la comparaison avec la formule analytique, indique qu'une convergence très rapide est obtenue avec un nombre modéré de GSFs. Pour He et Ne, nos résultats montrent, également, un très bon accord avec d'autres résultats théoriques et expérimentaux. Dans le cas des molécules, nous avons abordé l'orientation aléatoire avec deux stratégies : une utilise un potentiel moléculaire modèle (non-central), et l'autre un potentiel moyenné (central). Nous étudions la PI de CH4, NH3 et H2O à partir des orbitales de valence extérieure et intérieure, et aussi de SiH4 et H2S à partir des orbitales extérieures. Les sections efficaces de PI et les paramètres d'asymétrie (obtenus à partir des distributions angulaires) sont comparés avec ceux publiés dans la littérature. Nos résultats sont globalement satisfaisants et reproduisent les caractéristiques principales de ce processus d'ionisation. Dans une deuxième partie de la thèse, nous utilisons l'approche Sturmienne pour étudier l'ionisation de molécules par impact d'électrons. Pour le processus (e,2e), les sections efficaces triplement différentielles (TDCSs) sont examinées dans la première et deuxième approximation de Born, également en traitant de deux façons l'orientation aléatoire des molécules. Nous avons testé la méthode en comparent nos TDCSs pour l'atome d'hydrogène, montrant aussi son efficacité. Enfin, nous l'avons apliqué à l'ionisation de CH4, H2O et NH3, et nous avons comparé les résultats avec des données expérimentales et théoriques disponibles dans la littérature. Dans la plupart des cas, nos TDCSs sont en accord satisfaisant avec ces données, en particulier pour H2O et pour des électrons lents dans le cas de CH4
In this PhD thesis we implement a Sturmian approach, based on generalized Sturmian functions (GSFs), to study the ionization of molecules by collision with photons or electrons. Since the target Hamiltonian is highly non-central, describing molecular ionization is far from easy. Besides, as the spatial orientation of the molecule in most experimental measurements is not resolved, an important issue to take into account is its random orientation. In the literature, many theoretical methods have been proposed to deal with molecules, but many of them are adapted to study mainly bound states. An accurate description of the unbound (continuum) states of molecules remains a challenge. Here we propose to tackle these problems using GSFs, which are characterized to have, by construction, the correct asymptotic behavior of the studied system. This property allows one to perform ionization calculations more efficiently. We start and validate our Sturmian approach implementation by studying photoionization (PI) of H, He and Ne atoms. Different model potentials were used in order to describe the interaction of the ejected electron with the parental ion. We calculated the corresponding PI cross sections in both length and velocity gauges. For H atom, the comparison with the analytical formula shows that a rapid convergence can be achieved using a moderate number of GSFs. For He and Ne we have also an excellent agreement with other theoretical calculations and with experimental data. For molecular targets, we considered two different strategies to deal with their random orientation: one makes use of a molecular model potential (non-central), while the other uses an angular averaged version of the same potential (central). We study PI for CH4, NH3, and H2O, from the outer and inner valence orbitals, and for SiH4 and H2S from the outer orbitals. The calculated PI cross sections and also the asymmetry parameters (obtained from the corresponding angular distributions) are compared with available theoretical and experimental data. For most cases, we observed an overall fairly good agreement with reference values, grasping the main features of the ionization process. In a second part of the thesis, we apply the Sturmian approach to study ionization of molecules by electron collisions. In the so-called (e,2e) processes, fully differential cross sections are investigated within both the first- or the second-Born approximations. Again, we show how to include in the description the random orientation of the molecule. We start with H atom, as a test system: the comparison of the calculated triple differential cross sections (TDCSs) with analytical results illustrates, similarly to the PI case, the efficiency of our GSF method. It is then applied to ionization of CH4, H2O and NH3, and comparisons are made with the few theoretical and experimental data available in the literature. For most cases, our TDCSs can reproduce such data, particularly for H2O and for slow ejected electrons in CH4
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12

Pikuła, Rafał. "Enveloping semigroups of affine skew products and Sturmian-like systems." Columbus, Ohio : Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1244001488.

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13

Pikula, Rafal. "Enveloping semigroups of affine skew products and Sturmian-like systems." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1244001488.

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14

Simonet, Matthieu. "Mots de retours et pavages dans les plans sturmiens." Thesis, Grenoble, 2012. http://www.theses.fr/2012GRENM103.

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Les mots sturmiens sont une façon de coder les droites discrètes apériodiques. Ils ont été étudiés depuis la fin du 19ème siècle et disposent de nombreuses caractérisations. L'une d'elles, obtenue par Vuillon, est centrée sur la notion de mot de retour.Cette thèse a pour objet l'étude des mots sturmiens en dimension 2 vus comme codages des plans discrets apériodiques. L'objectif est d'aller vers une caractérisation des mots sturmiens bi-dimensionnels analogue à celle obtenue par Vuillon en dimension 1.Mais des problèmes propres à la dimension 2 rendent cette étude délicate, tels l'absence de concaténation de mots ou la difficulté à localiser un facteur au sein d'un mot. Afin d'y faire face, nous introduisons en dimension 2 les notions de motifs, motifs pointés, mots de localisation et mots de retour. Nous obtenons ainsi un prolongement à la dimension 2 d'un théorème de Morse et Hedlund concernant certains mots de retour dans un mot sturmien.Ce résultat nous permet d'établir un nouvel algorithme de fractions continues et nous permet de proposer, dans un cadre restreint, une notion de suite dérivée
Sturmian words are a way to encode aperiodic discrete lines. They have been studied since the end of the 19th century and can be characterized in many ways. One of these characterizations, obtained by Vuillon, centers around the notion of return words.This thesis aims to study 2-dimensional Sturmian words as encodings of aperiodic discrete planes. It is a first step towards a characterization of 2-dimensional Sturmian words analogous to that of Vuillon in dimension 1.However, concerns specific to dimension 2, such as the impossibility to concatenate words or the difficulty to locate a factor inside a word make the study much trickier. To tackle this, we introduce in dimension 2 notions of patterns, pointed patterns, localization words and return words.We obtain a 2-dimensional version of a theorem of Morse and Hedlund concerning certain return words in a Sturmian word. This result enables us to establish a new continued-fractions algorithm and to introduce, in a restricted setting, a notion of derived sequence
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15

Richard, Catherine Simone Renee. "Sturmian and Lyapunov optimizing measures : two specific problems in ergodic optization." Thesis, Queen Mary, University of London, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.542022.

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16

Du, Toit Lindie. "Some applications of Sturm's comparison theorem." Diss., University of Pretoria, 2012. http://hdl.handle.net/2263/30793.

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We consider several classes of orthogonal polynomials as well as the Bessel function where we study the convexity of zeros of these polynomials, satisfying either differential or real difference equations, by applying Sturm's comparison and convexity theorems as well as analogues of these theorems. In addition several results are obtained concerning the distances between consecutive zeros of some of these classes of polynomials. Further research possibilities concerning q-polynomials and polynomials satisfying complex difference equations are discussed.
Dissertation (MSc)--University of Pretoria, 2012.
Mathematics and Applied Mathematics
MSc
Unrestricted
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17

Yen, Chi Lun 1983. "O teorema de comparação de Sturm e aplicações." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/306956.

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Orientadores: Dimitar Kolev Dimitrov, Roberto Andreani
Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Matemática, Estatística e Computação Científica
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Resumo: O objetivo deste trabalho é apresentar uma nova formulação do Teorema de comparação de Sturm e suas aplicações na teoria dos zeros de polinômios ortogonais, que são: monotonicidade dos zeros dos polinômios ortogonais X1-Jacobi, desigualdades de Gautschi sobre os zeros dos polinômios ortogonais de Jacobi e o comportamento assintótico dos zeros dos polinômios ultrasféricos
Abstract: In this thesis we state a new formulation of the Sturm comparison Theorem and its applications to the zeros of orthogonal polynomials. Specifically, these applications deal with the monotonicity of zeros of X1-Jacobi orthogonal polynomials, Gautschi's conjectures about inequalities of zeros of Jacobi polynomials and the asymptotic of zeros of ultrasphricals polynomials
Doutorado
Matematica Aplicada
Doutor em Matemática Aplicada
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18

Ting, Lycretia Englang. "Sturm-Liouville theory." CSUSB ScholarWorks, 1996. https://scholarworks.lib.csusb.edu/etd-project/1206.

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19

Sturhan, Jochen [Verfasser]. "Ein spirocyclischer Glycinbaustein zur Aminosäuresynthese, als chirales Derivatisierungsreagenz und als Organokatalysator / Jochen Sturhan." Wuppertal : Universitätsbibliothek Wuppertal, 2010. http://d-nb.info/1008577049/34.

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20

NADER, Fabiano Neves. "Teorema de Sturm : uma demonstração detalhada do teorema de Sturm com propriedades e aplicações." Universidade Federal Rural de Pernambuco, 2014. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6704.

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This study aims to build the entire theoretical basis for the understanding and use of the Sturm theorem, which is a tool very well grounded to find the number of real roots of a polynomial with real coefficients. During the development of this study sought to illustrate with examples and applications in great detail so that students and teachers are able to understand and use this beautiful algorithm.
Este trabalho tem por finalidade construir toda a base teórica para a compreensão e utilização do Teorema de Sturm, que é uma ferramenta muito bem fundamentada para encontrar a quantidade de raízes reais de um polinômio com coeficientes reais. Durante o desenvolvimento desse estudo procurei ilustrar com exemplos e aplicações de forma bem detalhada para que alunos e professores tenham condições de entender e utilizar este belíssimo algoritmo.
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21

Conte, Roberta Mariassunta. "Problema omogeneo di Sturm-Liouville." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/6168/.

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Lo scopo dell’elaborato è dare un'esposizione del problema omogeneo di Sturm-Liouville, ossia lo studio di un tipo particolare di equazioni differenziali ordinarie del secondo ordine soggette a condizioni al contorno.
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Sturm, Florian [Verfasser]. "Handlungsverantwortung und psychische Störung / Florian Sturm." Hagen : FernUniversität in Hagen, 2017. http://d-nb.info/1130662551/34.

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Ottewell, Karen. "Lessing and the Sturm und Drang." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621841.

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Mach, Tibor [Verfasser], Anja [Akademischer Betreuer] Sturm, Anja [Gutachter] Sturm, and Jan M. [Gutachter] Swart. "Dualities and genealogies in stochastic population models / Tibor Mach ; Gutachter: Anja Sturm, Jan M. Swart ; Betreuer: Anja Sturm." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://d-nb.info/1153614375/34.

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25

Ozbekler, Abdullah. "Sturm Comparison Theory For Impulsive Differential Equations." Phd thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/3/12606894/index.pdf.

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In this thesis, we investigate Sturmian comparison theory and oscillation for second order impulsive differential equations with fixed moments of impulse actions. It is shown that impulse actions may greatly alter the oscillation behavior of solutions. In chapter two, besides Sturmian type comparison results, we give Leightonian type comparison theorems and obtain Wirtinger type inequalities for linear, half-linear and non-selfadjoint equations. We present analogous results for forced super linear and super half-linear equations with damping. In chapter three, we derive sufficient conditions for oscillation of nonlinear equations. Integral averaging, function averaging techniques as well as interval criteria for oscillation are discussed. Oscillation criteria for solutions of impulsive Hill&
#8217
s equation with damping and forced linear equations with damping are established.
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26

Rosen, Oren. "Sturm-Liouville extensions : applications in plate vibration /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2006. http://uclibs.org/PID/11984.

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Phillips, Michael D. "Sturm-Liouville eigenfunctions expressed in determinant form." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/26800.

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The purpose of this thesis is to investigate and establish Sturm- Liouville properties for special eigenfunctions which are expressed in determinant form. In particular, a special case is presented where the elements of the determinant are Legendre polynomials. This type of determinant has a probability background dealing in birth and death processes. The method of analysis used in this thesis is a new approach to solving this specific example. This investigation involves systems of differential equations and Prufer's analysis in the phase plane. The following are new results obtained in addition to solving the special case mentioned above. Special determinants of hypergeometric functions also possess Sturm-Liouville properties. As a special case, a different proof of Turan's Inequality is provided. Finally, several theorems are presented for Sturm-Liouville systems of differential equations with polynomial coefficients
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28

Drignei, Mihaela Cristina. "Inverse Sturm-Liouville problems using multiple spectra." [Ames, Iowa : Iowa State University], 2008.

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29

Almeida, Vitor Luiz de. "Os teoremas de Sturm e geometria simplética." Universidade Federal de Minas Gerais, 2012. http://hdl.handle.net/1843/EABA-8YASAW.

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We studied systems of non-autonomous ordinary differential equations of the form (B(t)x0)0 = A(t)x, x E Rn, in which the matrices A(t) e B(t) are symmetric for all t in reals, identifying them with equivalent hamiltonian systems in R2n. We'd given topological and geometrical properties of Grassmanian Lagrangian A(n) and their trains. The transversal orientation of the minimal codimension train A1() allowed us to define the Maslov's index. With help of the Symplectic Geometry and Algebraic Topology, we'd get generalizations of the Sturm classical theorems (comparison and separation theorems and their consequences) for n-dimensional case.
Estudamos sistemas de equações diferenciais não-autônomos da forma (B(t)x) = -A(t)x, x E Rn, em que as matrizes A(t) e B(t) são simétricas para todo t real, identificando-os com sistemas hamiltonianos equivalentes em R2n. Foram dadas propriedades topológicas e geométricas da grassmaniana lagrangiana A(n) e de seus estratos. A orientação transversal do estrato de codimensão mínima A1() permitiu-nos definir o índice de Maslov. Com o auxílio da Geometria Simplética e Topologia Algébrica, obtivemos generalizações dos teoremas clássicos de Sturm (teoremas da separação e da comparação e suas consequências) para o caso n-dimensional
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Isaksson, Hanna. "Vilken syn på tro uttrycker Halldorf och Sturmark i den svenska mediedebatten?" Thesis, Uppsala universitet, Systematisk teologi med livsåskådningsforskning, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-413759.

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31

Heuer, Benjamin [Verfasser], Anja [Akademischer Betreuer] [Gutachter] Sturm, and Dominic [Gutachter] Schuhmacher. "Convergence of the Genealogy of the Spatial Cannings Model / Benjamin Heuer ; Gutachter: Anja Sturm, Dominic Schuhmacher ; Betreuer: Anja Sturm." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://d-nb.info/1119447593/34.

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32

Vock, Petra Jenny. ""Der Sturm muss brausen in dieser toten Welt" Herwarth Waldens Sturm und die Lyriker des Sturm-Kreises in der Zeit des Ersten Weltkriegs ; Kunstprogrammatik und Kriegslyrik einer expressionistischen Zeitschrift im Kontext." Trier Wiss. Verl. Trier, 2005. http://deposit.d-nb.de/cgi-bin/dokserv?id=2851973&prov=M&dok_var=1&dok_ext=htm.

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33

Stewart, John Robert. "The evolution of Quaternary birds in the western Palaearctic : aspects of taxonomy and ecomorphology." Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325366.

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34

Schroeder, Martin. "Spektrum und asymptotische Eigenwertverteilung singulärer Sturm-Liouville-Probleme mit indefiniter Gewichtsfunktion." [S.l. : s.n.], 1997. http://www.ub.uni-duisburg.de/diss/diss9703/.

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35

Sturhan, Cornelia-Carmen [Verfasser], Michael [Akademischer Betreuer] Nitsche, Michael [Akademischer Betreuer] Hülsmann, and Knut [Akademischer Betreuer] Brockmann. "Akute Auswirkungen transkranieller Gleichstromstimulation auf Parameter kortikaler Erregbarkeit / Cornelia-Carmen Sturhan. Gutachter: Michael Hülsmann ; Knut Brockmann. Betreuer: Michael Nitsche." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2012. http://d-nb.info/1042847622/34.

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36

Bembé, Daniel. "Algebraic certificates for Budan's theorem." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-139848.

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37

高井, 勇輝. "Sturm の定理について." 名古屋大学 多元数理科学研究科, 2008. http://hdl.handle.net/2237/11238.

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Mampitiya, M. A. Upali. "Spectral asymptotics for polar vector Sturm-Liouville problems." Thesis, University of Ottawa (Canada), 1985. http://hdl.handle.net/10393/4690.

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39

Sturm, Burkhard [Verfasser]. "Verbesserte staggered Fermionwirkungen für QCD Thermodynamik / Burkhard Sturm." Bielefeld : Universitätsbibliothek Bielefeld, 1999. http://d-nb.info/1034401262/34.

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40

Sturm, Hannes [Verfasser]. "Miniaturisierte thermische Strömungssensoren auf flexiblem Substrat / Hannes Sturm." München : Verlag Dr. Hut, 2013. http://d-nb.info/104598759X/34.

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41

Souza, Valterlan Atanasio de [UNESP]. "Um estudo sobre a teoria de Sturm-Liouville." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/147113.

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Este texto aborda os principais resultados sobre a Teoria de Sturm-Liouville assim como os pré-requisitos necessários para construí-los, entre eles o Teorema Espectral para Operadores Compactos e a Teoria de Fredholm. Também são apresentados alguns exemplos e uma aplicação envolvendo uma equação diferencial parcial que modela o problema da corda vibrante.
This research approaches the main results on the Sturm-Liouville Theory, as well the necessary prerequisites for constructing them, including the Spectral Theorem for Compact Operators and Fredholm Theory. It is also presented some examples and an application involving a partial differential equation that models the vibrating string problem.
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Souza, Valterlan Atanasio de. "Um estudo sobre a teoria de Sturm-Liouville /." Rio Claro, 2016. http://hdl.handle.net/11449/147113.

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Orientador: Marta Cilene Gadotti
Banca: Suzete Maria Silva Afonso
Banca: Katia Andreia Gonçalves de Azevedo
Resumo: Este texto aborda os principais resultados sobre a Teoria de Sturm-Liouville assim como os pré-requisitos necessários para construí-los, entre eles o Teorema Espectral para Operadores Compactos e a Teoria de Fredholm. Também são apresentados alguns exemplos e uma aplicação envolvendo uma equação diferencial parcial que modela o problema da corda vibrante
Abastract: This research approaches the main results on the Sturm-Liouville Theory, as well the necessary prerequisites for constructing them, including the Spectral Theorem for Compact Operators and Fredholm Theory. It is also presented some examples and an application involving a partial differential equation that models the vibrating string problem
Mestre
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43

Rafaeli, Fernando Rodrigo. "Teorema de Sturm e zeros de polinômios ortogonais /." São José do Rio Preto : [s.n.], 2007. http://hdl.handle.net/11449/94295.

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Orientador: Dimitar Kolev Dimitrov
Banca: Valdir Antonio Menegatto
Banca: Alagocone Sri Ranga
Resumo: Neste trabalho estudamos o Teorema de Sturm para zeros de soluções de equações diferenciais lineares de segunda ordem e suas extensões. Estes resultados clássicos são aplicados para análise de monotonicidade e convexidade de zeros de polinômios ortogonais clássicos.
Abstract: We study Sturm's theorem on zeros of solution of linear second-order differential equations as well as its extension. These classical results are applied to analyze monotonicity and convexity of zeros of classical orthogonal polynomials.
Mestre
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44

Tuncer, Havva Şule Paşaoğlu Bilender. "Kendine eş olmayan Sturm-Liouville operatörlerinin spektral analizi /." Isparta : SDÜ Fen Bilimleri Enstitüsü, 2009. http://tez.sdu.edu.tr/Tezler/TF01301.pdf.

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45

Sturm, Lisa [Verfasser]. "Gefängnisbesuchsprojekte in Deutschland : Eine kriminologische Untersuchung / Lisa Sturm." Baden-Baden : Nomos Verlagsgesellschaft mbH & Co. KG, 2020. http://d-nb.info/1212394690/34.

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46

Rocha, Vinícius Lourenço da [UNESP]. "Limites dinâmicos para operadores de Schrödinger com potenciais Sturmianos." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/134286.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Baseando-se em trabalhos recentes da literatura, o presente trabalho tem como objetivo estudar limites dinâmicos para operadores de Schrödinger discretos, unidimensionais, com potenciais Sturmianos (modelos quase-periódicos). Tais limites são obtidos das taxas de propagação do pacote de ondas associado a uma partícula sobre a rede unidimensional Z. Utilizando um método desenvolvido por Damanik e Tcheremchantsev, obtém-se um limite dinâmico superior não-trivial para uma família grande de operadores Sturmianos, associados a números de rotação irracionais. Além disso, apresenta-se um limite inferior global para a dimensão fractal superior do espectro desses operadores, o qual é usado para obter um limite dinâmico inferior para tais operadores Sturmianos associados a números irracionais de densidade limitada. Serão utilizados resultados sobre o traço das matrizes de transferência associadas aos operadores de Schrödinger Sturmianos e também propriedades espectrais destes operadores.
By following recent papers in the literature, the present work aims to study dynamical bounds for one dimensional discrete Schrödinger operators with Sturmian potentials by bounding the rates of propagation of the wavepacket. By a method developed by Damanik and Tcheremchantsev, is obtained a non trivial upper bound for almost all Sturmian Schrödinger operator associated with irrational numbers. Moreover, it presents a global lower bound for the upper box counting dimension of the spectrum of these operators, which is used to obtain a lower dynamical bound for such Sturmian Schrödinger operators associated with bounded density irrational numbers. Will be used results about the traces of transfer matrices and spectral properties of Sturmian Schrödinger operators.
FAPESP: 2014/04321-9
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47

Silva, Felipe Vale da. "Subjetividade e experiência em Die Leiden des jungen Werthers e Wilhelm Meisters theatralische Sendung de J. W. Goethe." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/8/8144/tde-06122012-145632/.

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A análise desenvolvida no presente trabalho lida com o peculiar acesso do jovem Goethe à questão da subjetividade enquanto uma problemática que, em tempos modernos, traz todo um conjunto de dilemas e contradições em si. O tratamento da participação do autor no que é chamado de discurso moderno da subjetividade se dá, primeiramente, através da identificação de sua apropriação crítica de códigos culturais que lhe foram contemporâneos (como o Pietismo e a Empfindsamkeit), e, em um segundo momento, pela análise detida de seus dois romances do Sturm und Drang. A presente análise confronta, sobretudo, certas categorias tradicionalmente empregadas pela historiografia literária com o fim de generalizar um único modelo antropológico supostamente compartilhado por autores do Sturm und Drang isto é, o modelo do Genie e do indivíduo autônomo pertencente a uma época de crescente ênfase no ideal burguês de Bildung. Não apenas Goethe não compartilharia o mesmo entusiasmo de seus contemporâneos pelo individualismo enquanto valor em si, como também seus dois retratos romanescos desse individualismo sugerem a experiência moderna do Eu como uma entidade potencialmente autodefinidora como um aparato conceitual insuficiente, uma noção permeada por pressuposições metafísicas enganadoras que poderia e deveria ser reconsiderada. O famoso caso trágico de Werther, o indivíduo titânico para o qual não há lugar possível no mundo, é exemplar de tal insuficiência, e o fato de que Goethe continua a lidar com a imagem do ser à procura de seu cerne mais íntimo no romance seguinte, Wilhelm Meisters theatralische Sendung, é tomado como prolongamento de sua participação no corrente discurso filosófico da subjetividade do final do século XVIII. Estes romances são aqui tomados, assim, como dois momentos distintos ainda que de certa forma complementares, ou ao menos coerentes em relação um ao outro do acesso goethiano à problemática.
The analysis developed in the present work deals with the peculiar way the young Goethe portrayed the experience of subjectivity as an issue which, in modern times, brings a whole set of dilemmas and contradictions within itself. The treatment of the author\'s participation in what is here called the modern discourse of subjectivity is developed, first off, through the identification of his critical appropriation of certain cultural codes contemporary to him (such as the Pietistic movement and the Empfindsamkeit), and, in a second moment, through a direct analysis of his two Sturm und Drang novels. The present analysis confronts, above all, certain categories that are traditionally employed by the German literary historiography with the ends of generalizing a single anthropological model supposedly shared by Sturm und Drang authors e.g., the model of the Genie and autonomous individual of an age of growing emphasis upon a bourgeois ideal of Bildung. Against this approach, my claim is that not only Goethe does not share the same enthusiasm held by his contemporaries toward individualism as a value in itself, as his two novelistic portrayals of it suggests the modern experience of the I as the potentially self-defining entity as an insufficient conceptual apparatus, a notion surrounded by deceitful metaphysical presuppositions which could and should be reconsidered. The well-known tragic case of Werther, the titanic subject to whom there could not be any space in the ordinary world, is exemplar of such an insufficiency, and the fact that Goethe continues dealing with the image of the self in search for his innermost core in his following novel, Wilhelm Meisters theatralische Sendung, is taken as a completion of his participation in the ongoing philosophical discourse of subjectivity of the late eighteenth century. These novels are taken, therefore, as two different moments even though they end up being somewhat complementary, or at least coherent in relation to each other of the Goethian access to this issue.
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48

Raabe, Armin, Katja Friedrich, and Holger Fritsch. "Vergleich beobachteter und aus parametrisierten Beziehungen berechneter Windreibungskoeffizienten während eines Sturmes an der Ostseeküste." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-213400.

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Beobachtete und über parametns1erte Beziehungen berechnete Windreibungs-koeffizienten werden für die Zeit eines Sturms, der in der Zeit zwischen dem 08.07.96 und 11.07.96 an der Ostseeküste tobte, verglichen. Die innerhalb der ufernahen Zone aus Windprofildaten ermittelten Reibungskoeffizienten lassen sich mit weniger als 20% Fehler auch über vorliegende parametrisierten Beziehungen aus einer standardisierten Windgeschwindigkeitsmessung berechnen
A comparison between observed and calculated wind drag coefficients were investigated during a storm with wind speeds up to 20 m/s at the Baltic Sea coast between 3th July, 1996 and 1 lth July, 1996. The drag coefficient which was determined from observed wind speeds from wind profile measurements can also be predicted on behalf of parameterised relations with a random error less then 20%
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49

Raabe, Armin, Katja Friedrich, and Holger Fritsch. "Vergleich beobachteter und aus parametrisierten Beziehungen berechneter Windreibungskoeffizienten während eines Sturmes an der Ostseeküste." Universität Leipzig, 1998. https://ul.qucosa.de/id/qucosa%3A15080.

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Beobachtete und über parametns1erte Beziehungen berechnete Windreibungs-koeffizienten werden für die Zeit eines Sturms, der in der Zeit zwischen dem 08.07.96 und 11.07.96 an der Ostseeküste tobte, verglichen. Die innerhalb der ufernahen Zone aus Windprofildaten ermittelten Reibungskoeffizienten lassen sich mit weniger als 20% Fehler auch über vorliegende parametrisierten Beziehungen aus einer standardisierten Windgeschwindigkeitsmessung berechnen.
A comparison between observed and calculated wind drag coefficients were investigated during a storm with wind speeds up to 20 m/s at the Baltic Sea coast between 3th July, 1996 and 1 lth July, 1996. The drag coefficient which was determined from observed wind speeds from wind profile measurements can also be predicted on behalf of parameterised relations with a random error less then 20%.
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50

Brink-Spalink, Rebekka [Verfasser], Anja [Akademischer Betreuer] Sturm, and Dominic [Akademischer Betreuer] Schuhmacher. "Stochastic Models in Population Genetics: The Impact of Selection and Recombination / Rebekka Brink-Spalink. Gutachter: Anja Sturm ; Dominic Schuhmacher. Betreuer: Anja Sturm." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2015. http://d-nb.info/1069235105/34.

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