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Статті в журналах з теми "Extreme problem"

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Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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1

Hlubinka, Daniel, and Viktor Beneš. "PREDICTION OF THE EXTREMAL SHAPE FACTOR OF SPHEROIDAL PARTICLES." Image Analysis & Stereology 20, no. 2 (May 3, 2011): 101. http://dx.doi.org/10.5566/ias.v20.p101-104.

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In the stereological unfolding problem for spheroidal particles the extremal shape factor is predicted. The theory of extreme values has been used to show that extremes of the planar shape factor of particle sections tend to the same limit distribution as extremes of the original shape factor for both the conditional and marginal distribution. Attention is then paid to the extreme shape factor conditioned by the particle size. Normalizing constants are evaluated for a parametric model and the numerical procedure is tested on real data from metallography.

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2

Gupta, Renu, and M. C. Puri. "Extreme point Quadratic Minimization Problem." Journal of Information and Optimization Sciences 14, no. 1 (January 1993): 73–81. http://dx.doi.org/10.1080/02522667.1993.10699137.

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3

Zabolotnyi, Ya V. "On one Dubinin extreme problem." Ukrainian Mathematical Journal 64, no. 1 (June 2012): 24–34. http://dx.doi.org/10.1007/s11253-012-0627-z.

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4

Stahl, Peter. "Extreme Verschmutzungen sind kein Problem." JOT Journal für Oberflächentechnik 42, no. 1 (January 2002): 45. http://dx.doi.org/10.1007/bf03251532.

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5

Fisher, Stephen D., and Dmitry Khavinson. "Extreme Pick-Nevanlinna Interpolants." Canadian Journal of Mathematics 51, no. 5 (October 1, 1999): 977–95. http://dx.doi.org/10.4153/cjm-1999-043-5.

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AbstractFollowing the investigations of B. Abrahamse [1], F. Forelli [11], M. Heins [14] and others, we continue the study of the Pick-Nevanlinna interpolation problem inmultiply-connected planar domains. One major focus is on the problem of characterizing the extreme points of the convex set of interpolants of a fixed data set. Several other related problems are discussed.

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6

K.R, Ravishankar. "A STUDY ON PROBLEMS OF ELECTED WOMEN GRAMA PANCHAYATHH MEMBERS DURING GRAMA PANCHAYATHH ELECTION IN DAKSHINA KANNADA DISTRICT." International Journal of Research -GRANTHAALAYAH 6, no. 1 (January 31, 2018): 36–47. http://dx.doi.org/10.29121/granthaalayah.v6.i1.2018.1592.

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The term development is no meaning without inclusion of all sections of society. Women contribute a lot to the whole society, but it is invisible. Panchayath Raj Institutions, now a day’s equally (elected members) dominated by Women representation. Few important problems have been listed in tools and listed opinion of respondents whether the problem was extreame, moderate or on problem. It helped to understand, which the extreme problem, moderate is and no problem. Majority of the respondents were educated and their age was in-between 28 to 47.Political pressure and problems from political leaders have been identified as the major problems. Remaining problems were minimum. The study was focused on the problems of elected women Grama Panchayathh members during Grama Panchayathh election. The study was descriptive and mainly studied about their social, political and cultural problems. Contents of the questionnaire include respondent’s age, education, marital status and the type of family. Problems during election were divided into three points. First one was no problem, second was about moderate problem and third one was extreme problem.

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7

Chin, G. "Attacking the problem of extreme poverty." Science 348, no. 6236 (May 14, 2015): 768. http://dx.doi.org/10.1126/science.348.6236.768-q.

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8

Proctor, S. J., and J. Wilkinson. "Extreme Hodgkin's lymphoma: current problem areas." Annals of Oncology 17 (May 2006): iv15—iv17. http://dx.doi.org/10.1093/annonc/mdj993.

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9

Gupta1and, R., and M. C. Puri. "Extreme point quadratic fractional programming problem." Optimization 30, no. 3 (January 1994): 205–14. http://dx.doi.org/10.1080/02331939408843984.

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10

Senderov, V. A., and V. A. Khatskevich. "Koenigs problem and extreme fixed points." Functional Analysis and Its Applications 44, no. 1 (March 2010): 73–75. http://dx.doi.org/10.1007/s10688-010-0009-y.

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11

Borisova, Irina A., and Nikolay G. Zagoruiko. "Problem SDX as the Extreme Case of Combined Type Recognition Problems." Journal of Automation and Information Sciences 40, no. 4 (2008): 18–27. http://dx.doi.org/10.1615/jautomatinfscien.v40.i4.20.

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12

Gresham, Gina. "Extreme math adventures." Teaching Children Mathematics 23, no. 9 (May 2017): 530–31. http://dx.doi.org/10.5951/teacchilmath.23.9.0530.

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An “extreme“ adventure is an activity that comprises risky or uncertain experiences involving speed, height, and danger. In other words, it is doing the very things that were previously thought of as activities that simply could not be done. With these math problems, your students can explore what “extreme” adventures offer. Math by the Month features collections of short activities focused on a monthly theme. These articles aim for an inquiry or problem-solving orientation that includes four activities each for grade bands K–2, 3–4, and 5–6. Send submissions of no more than 1200 words to this department by accessing http://www.tcm.msubmit.net. See detailed submission guidelines for all departments at http://www.nctm.org/WriteForTCM.

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13

Zbroszczyk, Dorota. "SUICIDE EXTREME ACT OF PATHOLOGICAL BEHAVIOUR." Kultura Bezpieczeństwa. Nauka – Praktyka - Refleksje 32, no. 32 (December 31, 2018): 293–306. http://dx.doi.org/10.5604/01.3001.0012.8106.

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Contemporary times pose many threats to life and health. The type of changes in many areas of human life, e.g. changes in the economy, value loss, consumerism causes unexpected intensification of extreme social problems, e.g. suicides. Suicide is an extremely complex phenomenon in its aetiology, which is a problem not only of individual but also of social pathology. Due to their size, structure and dynamics, and above all the social consequences of suicidal behaviour, suicidal behaviour is an important social problem that cannot remain unnoticed.

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14

Sherali, Hanif D., and S. Elizabeth Dickey. "An extreme-point-ranking algorithm for the extreme-point mathematical programming problem." Computers & Operations Research 13, no. 4 (January 1986): 465–75. http://dx.doi.org/10.1016/0305-0548(86)90034-1.

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15

Abdulrahim, Basiya K. "On extreme point quadratic fractional programming problem." Applied Mathematical Sciences 8 (2014): 261–77. http://dx.doi.org/10.12988/ams.2014.312700.

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16

Yang, Xiangfeng, and Yaodong Ni. "Extreme values problem of uncertain heat equation." Journal of Industrial & Management Optimization 15, no. 4 (2019): 1995–2008. http://dx.doi.org/10.3934/jimo.2018133.

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17

Вольцингер, Наум Евсеевич, and Алексей Анатольевич Андросов. "Extreme nonhydrostatic tidal dynamics." Вычислительные технологии, no. 2(24) (April 17, 2019): 37–51. http://dx.doi.org/10.25743/ict.2019.24.2.004.

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Моделирование длинноволновых океанологических процессов традиционно выполняется в гидростатическом (Гс) приближении, обеспечивающем высокую точность расчета гидрофизических полей, когда вертикальным ускорением движения можно пренебречь. На горном рельефе это не так, и учет динамической компоненты давления становится необходимым. Негидростатическое (Нг) моделирование крупномасштабных океанологических явлений реализуется решением 3D краевой гидродинамической задачи. Структуру метода составляют этапы решения Гс-задачи, краевой задачи для уравнения Пуассона (Нг) и коррекции полей гидрофизических характеристик. Значимость Нг-фактора выявляется при рассмотрении безразмерного вида уравнений, когда безразмерные параметры характеризуют горный рельеф области. Случай резких изменений рельефа, требующий решения Нг-задачи, - пролив Ломбок. Приводятся оценки Нг-фактора в водообмене между океанами, результаты сравнения спектров вертикальной скорости в Гс- и Нг-постановках. Modelling of long-wave oceanological processes is traditionally performed in a hydrostatic (Hs) approximation, which ensures high accuracy of the calculation of hydrophysical fields, when the vertical acceleration of vertical motion can be neglected. In mountainous terrain, this is not the case, and consideration of the dynamic pressure component becomes necessary. Non-hydrostatic (Nh) modelling of large-scale oceanological phenomena is implemented by solving hydrodynamic boundary value problem in an arbitrary 3D domain. The structure of the method consists of the stages of solving the Hs problem, the boundary value problem for the Poisson equation (Nh), and the correction of the fields of hydrophysical characteristics. That is the pressure is presented as a sum of its hydrostatic and dynamical components. Significance of Nh is revealed when considering the dimensionless type of equations, when dimensionless parameters characterize the mountain relief of the region. The Lombok Strait having a complex morphometric structure is an important link in the water exchange between the Pacific and Indian Oceans, it has been chosen as the object for modelling. Estimates of the role of Nh in water exchange between the oceans are given using the comparison of the solution for problems in Hs and Nh sets. It indicates the need to take into account Nh in conditions of pronounced sea mountain relief.

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18

TANTAWY, S. F. "SOLVING A SPECIAL CLASS OF MULTIPLE OBJECTIVE LINEAR FRACTIONAL PROGRAMMING PROBLEMS." ANZIAM Journal 56, no. 1 (July 2014): 91–103. http://dx.doi.org/10.1017/s1446181114000200.

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AbstractIn this paper a feasible direction method is presented to find all efficient extreme points for a special class of multiple objective linear fractional programming problems, when all denominators are equal. This method is based on the conjugate gradient projection method, so that we start with a feasible point and then a sequence of feasible directions towards all efficient adjacent extremes of the problem can be generated. Since methods based on vertex information may encounter difficulties as the problem size increases, we expect that this method will be less sensitive to problem size. A simple production example is given to illustrate this method.

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19

Andjelkovic, Goran. "Climatic extremes in Serbia: Definitions, types and classification." Glasnik Srpskog geografskog drustva 90, no. 4 (2010): 125–46. http://dx.doi.org/10.2298/gsgd1004125a.

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Climatic extremes as negative events are named to be one of the major problems of humankind today. Still, their complex and systematic study is missing - they are studied only as an ?attachment? to the problem of contemporary climate changes. Number of terms is used arbitrarily, such as climatic extremes and extreme climate events. From the geographical perspective, there is a need to define extremes and classify them at first, and only then to establish criteria for their identification, to link the problem to the geographical base, etc. There should be a specific approach for every area on Earth. In this work 31 extreme climate events have been isolated and defined, and all of them, according to their specific characteristics and their harmfulness, have been classified into 5 categories. Systematic geographical studies of these events could intensify the fight against atmospheric hazards in Serbia and help the system of insurance of people and material goods. There should be regulations that would include precise definitions of all hazards with precise borders of the harmfulness of the event, then the assessment of the possible endangerment and the possibility of protection in certain regions, etc.

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20

Guth, Stephen, and Themistoklis P. Sapsis. "Machine Learning Predictors of Extreme Events Occurring in Complex Dynamical Systems." Entropy 21, no. 10 (September 23, 2019): 925. http://dx.doi.org/10.3390/e21100925.

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The ability to characterize and predict extreme events is a vital topic in fields ranging from finance to ocean engineering. Typically, the most-extreme events are also the most-rare, and it is this property that makes data collection and direct simulation challenging. We consider the problem of deriving optimal predictors of extremes directly from data characterizing a complex system, by formulating the problem in the context of binary classification. Specifically, we assume that a training dataset consists of: (i) indicator time series specifying on whether or not an extreme event occurs; and (ii) observables time series, which are employed to formulate efficient predictors. We employ and assess standard binary classification criteria for the selection of optimal predictors, such as total and balanced error and area under the curve, in the context of extreme event prediction. For physical systems for which there is sufficient separation between the extreme and regular events, i.e., extremes are distinguishably larger compared with regular events, we prove the existence of optimal extreme event thresholds that lead to efficient predictors. Moreover, motivated by the special character of extreme events, i.e., the very low rate of occurrence, we formulate a new objective function for the selection of predictors. This objective is constructed from the same principles as receiver operating characteristic curves, and exhibits a geometric connection to the regime separation property. We demonstrate the application of the new selection criterion to the advance prediction of intermittent extreme events in two challenging complex systems: the Majda–McLaughlin–Tabak model, a 1D nonlinear, dispersive wave model, and the 2D Kolmogorov flow model, which exhibits extreme dissipation events.

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21

Kaas, R. "The Schmitter Problem and a Related Problem: A Partial Solution." ASTIN Bulletin 21, no. 1 (April 1991): 133–46. http://dx.doi.org/10.2143/ast.21.1.2005406.

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AbstractAt the 1990 ASTIN-colloquium, Schmitter posed the problem of finding the extreme values of the ultimate ruin probability ψ(u) in a risk process with initial capital u, fixed safety margin θ, and mean μ and variance σ2 of the individual claims. This note aims to give some more insight into this problem. Schmitter's conjecture that the maximizing individual claims distribution is always diatomic is disproved by a counterexample. It is shown that if one uses the distribution maximizing the upper bound e−Ru to find a ‘large’ ruin probability among risks with range [0, b], incorrect results are found if b is large or u small.The related problem of finding extreme values of stop-loss premiums for a compound Poisson (λ) distribution with identical restrictions on the individual claims is analyzed by the same methods. The results obtained are very similar.

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22

Bakhtin, Aleksandr, and Inna Dvorak. "The problem of extreme decomposition of the plane." Proceedings of the Institute of Applied Mathematics and Mechanics NAS of Ukraine 32 (December 28, 2018): 3–9. http://dx.doi.org/10.37069/1683-4720-2018-32-1.

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Considered here is one quite general problem about the description of extremal configurations maximizing the product of inner radii mutually non-overlapping domains the next following form: \begin{equation} J_{n}(\gamma)=\left[r\left(B_0,0\right)r\left(B_\infty,\infty\right)\right]^{\gamma}\prod\limits_{k=1}^n r\left(B_k,a_k\right),\end{equation} where $\gamma\in\mathbb{R^{+}}$, $A_{n}=\{a_{k}\}_{k=1}^{n}$ -- $n$-radial points system, $B_0$, $B_\infty$, $\{B_{k}\}_{k=1}^{n}$ -- set of systems of mutually disjoint domains, \textup{(}$a_{0}=0\in B_0\subset{\mathbb{C}}$, $\infty\in B_\infty\subset\overline{\mathbb{C}}$, $a_k\in B_k\subset{\mathbb{C}}$\textup{)}, achieved for some configuration of domains $B_{0}$, $B_{k}$, $B_{\infty}$ and points $a_{0}$, $a_{k}$, $\infty$, $k=\overline{1, n}$. The functional (1) evaluation for the first time was obtained in 1988 by V.M. Dubinin \cite{4} for {$\gamma=\frac{1}{2}$ и $n\geqslant2$} for systems of disjoint domains using symmetrization method. A special case, when domains are univalent, was examined by G.V. Kuzmina in \cite{KYZMINA-01} After the result of V.M. Dubinin in the general formulation for the arbitrary multiply-concted domains was not until 2017. In 2017 in the work of I. Dengi, A. Targonsky \cite{iratarg} was the result for $\gamma_{n}=0.08n^{2}$, $n\geq7$. The result was obtained through a lower bound of $min_t (n-1)x_{1}+x_{2},$ where $x_{1}(t)+x_{2}(t)$ is the equation $F^\prime (x)=t$ solution, $F^\prime (x)=4x\ln(x)-2(x-1)\ln|x-1|-2(x+1)\ln(x+1)+\frac{2}{x}, $ $y_0 \leqslant t<0$, $y_{0}\approx-1,0599$. In this paper, a much better estimate of $min_t (n-1)x_{1}+x_{2}$ was obtained through a lower bound with the specified parameters. On the basis of this, the article succeeded in obtaining an estimate of the maximum of the functional (1) over a larger interval of the parameter $\gamma$, $\gamma\in(0,\gamma_{n}]$, $n\geq7$. Received the result for for any points of the circle $|a_k|=R$, $k=\overline{1,n}$, and any pairwise disjoint systems of domains $B_k$, $a_{0}=0\in B_0\subset{\mathbb{C}}$, $\infty\in B_\infty\subset\overline{\mathbb{C}}$, $a_k\in B_k\subset{\mathbb{C}}$, $k=\overline{1,n}.$

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23

Targonskii, Andrii, and Iryna Targonskaya. "Extreme problem for a mosaic system of points." Ukrainian Mathematical Bulletin 17, no. 3 (September 17, 2020): 437–47. http://dx.doi.org/10.37069/1810-3200-2020-17-3-8.

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In the geometric theory of functions of a complex variable, the well-known direction is related to the estimates of the products of the inner radii of pairwise nonoverlapping domains. This direction is called extreme problems in classes of pairwise nonoverlapping domains. One of the problems of this type is considered in the present work.

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24

Corvo, Tony. "An Analytical Solution to the Extreme Skydiver Problem." Physics Teacher 57, no. 5 (May 2019): 287–89. http://dx.doi.org/10.1119/1.5098912.

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25

Meeke, J., and C. Thomas. "On an extreme value problem for flat processes." Communications in Statistics. Stochastic Models 2, no. 2 (January 1986): 273–80. http://dx.doi.org/10.1080/15326348608807036.

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26

Yi, Sukyoung K. "Multiple population theory: The extreme helium population problem." Proceedings of the International Astronomical Union 4, S258 (October 2008): 253–64. http://dx.doi.org/10.1017/s1743921309031901.

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AbstractThe spreads in chemical abundances inferred by recent precision observations suggest that some or possibly all globular clusters can no longer be considered as simple stellar populations. The most striking case is ω Cen in the sense that its bluest main-sequence, despite its high metallicity, demands an extreme helium abundance of Y ≈ 0.4. I focus on this issue of “the extreme helium population problem” in this review.

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27

Targonskii, Andrii Leonidovych, and Iryna Igorivna Targonskaya. "Extreme problem for a mosaic system of points." Journal of Mathematical Sciences 252, no. 4 (January 2021): 558–65. http://dx.doi.org/10.1007/s10958-020-05180-7.

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28

Targonskii, Andrii, and Iryna Targonskaya. "Extreme problem for a mosaic system of points." Ukrainian Mathematical Bulletin 17, no. 3 (September 17, 2020): 437–47. http://dx.doi.org/10.37069/1810-3200-2020-17-3-8.

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Анотація:

In the geometric theory of functions of a complex variable, the well-known direction is related to the estimates of the products of the inner radii of pairwise nonoverlapping domains. This direction is called extreme problems in classes of pairwise nonoverlapping domains. One of the problems of this type is considered in the present work.

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29

Contzen, Justus, Thorsten Dickhaus, and Gerrit Lohmann. "Variability and extremes: statistical validation of the Alfred Wegener Institute Earth System Model (AWI-ESM)." Geoscientific Model Development 15, no. 4 (March 3, 2022): 1803–20. http://dx.doi.org/10.5194/gmd-15-1803-2022.

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Abstract. Coupled general circulation models are of paramount importance to quantitatively assessing the magnitude of future climate change. Usual methods for validating climate models include the evaluation of mean values and covariances, but less attention is directed to the evaluation of extremal behaviour. This is a problem because many severe consequences of climate change are due to climate extremes. We present a method for model validation in terms of extreme values based on classical extreme value theory. We further discuss a clustering algorithm to detect spatial dependencies and tendencies for concurrent extremes. To illustrate these methods, we analyse precipitation extremes of the Alfred Wegener Institute Earth System Model (AWI-ESM) global climate model and from other models that take part in the Coupled Model Intercomparison Project CMIP6 and compare them to the reanalysis data set CRU TS4.04. The clustering algorithm presented here can be used to determine regions of the climate system that are then subjected to a further in-depth analysis, and there may also be applications in palaeoclimatology.

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30

BOKHONSKY, A. I. "SEARCH EXTREME FUNCTIONAL." Fundamental and Applied Problems of Engineering and Technology 4, no. 1 (2020): 144–49. http://dx.doi.org/10.33979/2073-7408-2020-342-4-1-144-149.

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Examples illustrate the developed procedure for checking the sufficient condition for the extremum of a functional (construction of its mathematical image); in the problem of the calculus of variations on a conditional extremum, the role of the Lagrange multiplier is estimated and the surface of the functional is constructed in terms of the parameters of variations of admissible functions of a normalized linear space.

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31

Dison, W., E. Einstein, and T. R. Riley. "Taming the hydra: The word problem and extreme integer compression." International Journal of Algebra and Computation 28, no. 07 (October 15, 2018): 1299–381. http://dx.doi.org/10.1142/s0218196718500583.

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For a finitely presented group, the word problem asks for an algorithm which declares whether or not words on the generators represent the identity. The Dehn function is a complexity measure of a direct attack on the word problem by applying the defining relations. Dison and Riley showed that a “hydra phenomenon” gives rise to novel groups with extremely fast growing (Ackermannian) Dehn functions. Here, we show that nevertheless, there are efficient (polynomial time) solutions to the word problems of these groups. Our main innovation is a means of computing efficiently with enormous integers which are represented in compressed forms by strings of Ackermann functions.

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32

Duong, Dam Ton, and Cuong Kien Dang. "Solving the problem of hydrometeorological data analysis by random process." Science and Technology Development Journal 20, K2 (June 30, 2017): 101–6. http://dx.doi.org/10.32508/stdj.v20ik2.455.

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The paper reviews the hydrometeorological data analysis (precipitation, flow, water level, etc.) to evaluate and predict mutations such as flood, drought and saline extremes to reduce the impact of climate change on the economy and life. The main method for solving the problem posed is the max-domain of attraction of extreme distributions with the Gumbel copula of random variables related to hydrometeorological data. Results presented in this paper are reviewed and verified through data supplied by hydrometeorological stations at the Tan Chau and Chau Doc districts, An Giang province from 1990 to present

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33

Freericks, J. K., B. K. Nikolić, and O. Frieder. "The nonequilibrium quantum many-body problem as a paradigm for extreme data science." International Journal of Modern Physics B 28, no. 31 (December 8, 2014): 1430021. http://dx.doi.org/10.1142/s0217979214300217.

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Generating big data pervades much of physics. But some problems, which we call extreme data problems, are too large to be treated within big data science. The nonequilibrium quantum many-body problem on a lattice is just such a problem, where the Hilbert space grows exponentially with system size and rapidly becomes too large to fit on any computer (and can be effectively thought of as an infinite-sized data set). Nevertheless, much progress has been made with computational methods on this problem, which serve as a paradigm for how one can approach and attack extreme data problems. In addition, viewing these physics problems from a computer-science perspective leads to new approaches that can be tried to solve more accurately and for longer times. We review a number of these different ideas here.

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34

van Eijk, Stefan F., René Bos, and Wim A. A. M. Bierbooms. "The risks of extreme load extrapolation." Wind Energy Science 2, no. 2 (July 14, 2017): 377–86. http://dx.doi.org/10.5194/wes-2-377-2017.

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Abstract. An important problem in wind turbine design is the prediction of the 50-year load, as set by the IEC 61400-1 Design Load Case (DLC) 1.1. In most cases, designers work with limited simulation budgets and are forced to use extrapolation schemes to obtain the required return level. That this is no easy task is proven by the many studies dedicated to finding the best distribution and fitting method to capture the extreme load behavior as well as possible. However, the issue that is often overlooked is the effect that the sheer uncertainty around the 50-year load has on a design process. In this paper, we use a collection of 96 years' worth of extreme loads to perform a large number of hypothetical design problems. The results show that, even with sample sizes exceeding N = 103 10 min extremes, designs are often falsely rejected or falsely accepted based on an over- or underpredicted 50-year load. Therefore, designers are advised to be critical of the outcome of DLC 1.1 and should be prepared to invest in large sample sizes.

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Sadygov, M. A. "An Extreme Problem for a Volterra Type Integral Inclusion." OALib 06, no. 08 (2019): 1–8. http://dx.doi.org/10.4236/oalib.1105605.

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Rong, Hai-Jun, Yew-Soon Ong, Ah-Hwee Tan, and Zexuan Zhu. "A fast pruned-extreme learning machine for classification problem." Neurocomputing 72, no. 1-3 (December 2008): 359–66. http://dx.doi.org/10.1016/j.neucom.2008.01.005.

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Liu, Xumin, Xiaolian Liu, Zilong Duan, and Weixian Xu. "A New Approach for Solving the Local Extreme Problem." International Journal of Control and Automation 8, no. 12 (December 31, 2015): 295–312. http://dx.doi.org/10.14257/ijca.2015.8.12.27.

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Gao, Huan, Yu-Hong Dai, and Xiao-Jiao Tong. "Barzilai-Borwein-like methods for the extreme eigenvalue problem." Journal of Industrial & Management Optimization 11, no. 3 (2015): 999–1019. http://dx.doi.org/10.3934/jimo.2015.11.999.

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Gao, Huan, Zhibao Li, and Haibin Zhang. "A fast continuous method for the extreme eigenvalue problem." Journal of Industrial & Management Optimization 13, no. 3 (2017): 1587–99. http://dx.doi.org/10.3934/jimo.2017008.

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40

Kizer, Kenneth W. "Extreme Wildfires—A Growing Population Health and Planetary Problem." JAMA 324, no. 16 (October 27, 2020): 1605. http://dx.doi.org/10.1001/jama.2020.19334.

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Pozin, S. M., and L. A. Sakhnovich. "On one extreme problem in the theory of approximation." Integral Equations and Operator Theory 21, no. 4 (December 1995): 484–97. http://dx.doi.org/10.1007/bf01222019.

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Wang, Xiaodong. "On the complexity of the extreme points decision problem." Information Processing Letters 40, no. 2 (October 1991): 101–6. http://dx.doi.org/10.1016/0020-0190(91)90017-c.

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43

Mahapatra, Deshabrata Roy, Sankar Kumar Roy, and Mahendra Prasad Biswal. "Multi-choice stochastic transportation problem involving extreme value distribution." Applied Mathematical Modelling 37, no. 4 (February 2013): 2230–40. http://dx.doi.org/10.1016/j.apm.2012.04.024.

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44

Girardin, Valerie. "Extreme Measures with Given Moments or Marginals." Canadian Journal of Mathematics 47, no. 5 (October 1, 1995): 946–58. http://dx.doi.org/10.4153/cjm-1995-049-7.

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AbstractWe study the generalized moment problem and the marginal constraints problem. We connect them when the measures have a finite support.The extreme points of the convex set of solutions with a finite support are determined in both problems.For the moment problem, they are shown to span in the weak topology the set of all the solutions.

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45

Wesson, R., D. Jones, J. García-Rojas, H. Boffin, and R. Corradi. "Close Binaries and the Abundance Discrepancy Problem in Planetary Nebulae." Galaxies 6, no. 4 (October 19, 2018): 110. http://dx.doi.org/10.3390/galaxies6040110.

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Motivated by the recent establishment of a connection between central star binarity and extreme abundance discrepancies in planetary nebulae, we have carried out a spectroscopic survey targeting planetary nebula with binary central stars and previously unmeasured recombination line abundances. We have discovered seven new extreme abundance discrepancies, confirming that binarity is key to understanding the abundance discrepancy problem. Analysis of all 15 objects with a binary central star and a measured abundance discrepancy suggests a cut-off period of about 1.15 days, below which extreme abundance discrepancies are found.

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Wong, M., M. Walzman, K. Zayyan, and R. Das Gupta. "Verrucous carcinoma – an embarrassing problem?" International Journal of STD & AIDS 18, no. 8 (August 1, 2007): 573–74. http://dx.doi.org/10.1258/095646207781439685.

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Human papillomaviruses (HPVs) types 6 and 11 are usually associated with benign genital condylomata, but here we describe an extreme case of verrucous carcinoma associated with HPV 6 in a patient too embarrassed to seek early medical advice.

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47

Parens, Joshua. "Multiculturalism and the Problem of Particularism." American Political Science Review 88, no. 1 (March 1994): 169–81. http://dx.doi.org/10.2307/2944889.

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When Kant first used the term “culture,” he referred to the human capacity to will universal moral laws. Multiculturalists object to the denial of “difference” implicit in Kantian as well as all other Enlightenment forms of universalism. Their objection stems from their more particularistic understanding of culture, which for the most part everyone shares today. Plato is frequently said to be the fount of (universal) natural law theory; yet a medieval Muslim philosopher, Alfarabi, presents a Plato who denies moral universalism but acknowledges the possibility of some form of universalism, at least in the realm of knowledge. Alfarabi's Plato thereby provides a corrective for both extreme contemporary particularism and extreme Kantian universalism.

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Febres. "A Space Decomposition-Based Deterministic Algorithm for Solving Linear Optimization Problems." Axioms 8, no. 3 (August 1, 2019): 92. http://dx.doi.org/10.3390/axioms8030092.

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This document introduces a method to solve linear optimization problems. The method’s strategy is based on the bounding condition that each constraint exerts over the dimensions of the problem. The solution of a linear optimization problem is at the intersection of the constraints defining the extreme vertex. The method decomposes the n-dimensional linear problem into n-1 two-dimensional problems. After studying the role of constraints in these two-dimensional problems, we identify the constraints intersecting at the extreme vertex. We then formulate a linear equation system that directly leads to the solution of the optimization problem. The algorithm is remarkably different from previously existing linear programming algorithms in the sense that it does not iterate; it is deterministic. A fully c-sharp-coded algorithm is made available. We believe this algorithm and the methods applied for classifying constraints according to their role open up a useful framework for studying complex linear problems through feasible-space and constraint analysis.

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Vyhivska, Liudmyla. "The problem of extreme decomposition of a complex plane with fixed poles on a circle." Proceedings of the Institute of Applied Mathematics and Mechanics NAS of Ukraine 32 (December 28, 2018): 10–17. http://dx.doi.org/10.37069/1683-4720-2018-32-2.

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The problem of extreme decomposition of a complex plane with fixed poles on a circle. Investigation on geometric function theory has been conducted by several researchers, however, few studies have reported on the problem considering extremal configurations the product of inner radii of non-overlapping domains with respect to fixed poles. The paper describes the problem of finding the maximum of the product of inner radii of mutually non-overlapping symmetric domains with respect to points on a unit circle multiply by a certain positive degree \(\gamma\) of the inner radius of the domain with respect to the zero. The problem was studied using the method of separating transformation. Proving the theorem shows that the maximum is obtained if \(\gamma\in(1,n^2]\) and for all \(n\geqslant 2\). Its results and the method for the obtaining of these results can be used in the theory of potential, approximations, holomorphic dynamics, estimation of the distortion problems in conformal mapping, and complex analysis.

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Kordyum, V. A. "The problem of survival: from transitory stay in extreme situation to constant inhabiting in extreme conditions." Biopolymers and Cell 8, no. 2 (March 20, 1992): 3–36. http://dx.doi.org/10.7124/bc.000317.

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