Results 11 to 20 of about 5,422,793 (299)

Bilevel programs with extremal value function: global optimality [PDF]

International Journal of Mathematics and Mathematical Sciences, 2005
For a bilevel program with extremal value function, a necessary and sufficient condition for global optimality is given, which reduces the bilevel program to a max-min problem with linked constraints. Also, for the case where the extremal value function
Abdelmalek Aboussoror, Hicham Babahadda, Abdelatif Mansouri   +2 more
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Extremality of Koebe’s Function

Axioms
The remarkable Koebe function is the (unique) extremal of many important distortion functionals in geometric function theory. This paper provides a complete characterization of such functionals.
Samuel L. Krushkal
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AN EXTREMAL PROBLEM FOR UNIVALENT FUNCTIONS [PDF]

Analele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2010
Let S be the class of functions f(z)=z+a2z 2 …, f(0)=0, f′(0)=1 which are regular and univalent in the unit disk |z| x the equation φ′( x)=0 does not have real roots. Since S is a compact class, there exists x .
Miodrag IOVANOV
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On the Existence of an Extremal Function in the Delsarte Extremal Problem [PDF]

Mediterranean Journal of Mathematics, 2020
AbstractThis paper is concerned with a Delsarte-type extremal problem. Denote by$${\mathcal {P}}(G)$$P(G)the set of positive definite continuous functions on a locally compact abelian groupG. We consider the function class, which was originally introduced by Gorbachev,$$\begin{aligned}&{\mathcal {G}}(W, Q)_G = \left\{ f \in {\mathcal {P}}(G) \cap L^
Marcell Gaál, Zsuzsanna Nagy-Csiha
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A Functional Extremal Criterion [PDF]

Journal of Mathematical Sciences, 2004
Let \({\mathcal N}=\{(t_k, X_k):\, k\geq 1\}\) be a point process with time space \([0, \infty)\) and state space \([0, \infty)^d\), where \(\{t_k\}\) are distinct nonrandom time points monotonically increasing to \(\infty\). \(\{X_k\}\) are independent and identically distributed random vectors on a given probability space with values in \([0,\infty ...
Jordanova, P. K., Pancheva, E. I.
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Approximation of Minimal Functions by Extreme Functions [PDF]

SIAM Journal on Optimization, 2018
In a recent paper, Basu, Hildebrand, and Molinaro established that the set of continuous minimal functions for the 1-dimensional Gomory--Johnson infinite group relaxation possesses a dense subset of extreme functions. The $n$-dimensional version of this result was left as an open question.
Teresa M. Lebair, Amitabh Basu
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On extremal sets without coprimes [PDF]

, 1994
Ahlswede R, Khachatrian LH. On extremal sets without coprimes. Acta Arithmetica.
Levon Khachatrian, Khachatrian, Levon H., Rudolf Ahlswede, Khachatrian, Levon, Ahlswede, Rudolf   +4 more
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Functionals of clusters of extremes [PDF]

Advances in Applied Probability, 2003
For arbitrary stationary sequences of random variables satisfying a mild mixing condition, distributional approximations are established for functionals of clusters of exceedances over a high threshold. The approximations are in terms of the distribution of the process conditionally on the event that the first variable exceeds the threshold.
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Extremal distributions of discrepancy functions [PDF]

Journal of Complexity, 2019
11 ...
Ralph Kritzinger, Markus Passenbrunner
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On the extremal function for graph minors [PDF]

Journal of Graph Theory, 2022
AbstractFor a graph , let , where means that is a minor of . We show that if has average degree , then where is an explicitly defined constant. This bound matches a corresponding lower bound shown to hold for almost all such by Norin, Reed, Wood and the first author.
Andrew Thomason 0001, Matthew Wales
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