Results 11 to 20 of about 6,047 (304)

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

open access: yesInternational 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   +2 more
doaj   +2 more sources

Theorem on the Structure of the Fractionally Linear Functional Extremal Function

open access: yesMathematics, 2023
The paper proves a theorem about the structure of the distribution function on which the extremum of the fractionally linear functional is reached in the presence of an uncountable number of linear constraints.
Victor Kashtanov   +2 more
doaj   +2 more sources

Extremal problems related to convexity

open access: yesJournal of Inequalities and Applications, 2016
We consider the extremal problem of maximizing functions u in the class of real-valued biconvex functions satisfying a boundary condition ψ on a product of the unit ball with itself, with the ℓ p $\ell^{p}$ -norm. In 1986, Burkholder explicitly found the
Aimo Hinkkanen, Sineenuch Suwannaphichat
doaj   +2 more sources

Uniqueness of near-horizon geometries of rotating extremal AdS(4) black holes [PDF]

open access: yes, 2009
We consider stationary extremal black hole solutions of the Einstein-Maxwell equations with a negative cosmological constant in four dimensions. We determine all non-static axisymmetric near-horizon geometries and all static near-horizon geometries for ...
Lucietti, James, Kunduri, Hari K.
core   +1 more source

Functionals of clusters of extremes [PDF]

open access: yesAdvances 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.
openaire   +6 more sources

Reversed Hardy-Littlewood-Sobolev inequalities with weights on the Heisenberg group

open access: yesAdvances in Nonlinear Analysis, 2023
In this article, we establish some reverse weighted Hardy-Littlewood-Sobolev inequalities on the Heisenberg group. We then show the existence of extremal functions for the above inequalities by combining the subcritical approach and the renormalization ...
Hu Yunyun
doaj   +1 more source

Extremal distributions of discrepancy functions [PDF]

open access: yesJournal of Complexity, 2019
11 ...
Ralph Kritzinger, Markus Passenbrunner
openaire   +3 more sources

Extremal orders of some functions connected to regular integers modulo n

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2013
Let V (n) denote the number of positive regular integers (mod n) less than or equal to n. We give extremal orders of , , , , where σ(n), ψ(n) are the sum-of-divisors function and the Dedekind function, respectively. We also give extremal orders for and ,
Brăduţ Apostol
doaj   +1 more source

Thermodynamics and weak cosmic censorship conjecture in Reissner-Nordström anti-de Sitter black holes with scalar field

open access: yesNuclear Physics B, 2019
The thermodynamics and weak cosmic censorship conjecture in Reissner-Nordström anti-de Sitter black holes are investigated by the scattering of the scalar field.
Deyou Chen, Wei Yang, Xiaoxiong Zeng
doaj   +1 more source

Approximation by Extreme Functions

open access: yesJournal of Approximation Theory, 1999
For a topological space \(T\) and a real normed space \(X\) let \(Y= C(T,X)\), the normed space of all \(X\)-valued bounded continuous functions on \(T\) endowed with the supremum norm. Let \(Y^{-1}=\{f\in Y:f\) does not vanish in any \(t\in T\}\). For \(f\in Y\), let \(\alpha(f)= d(f,Y^{-1})\) and let \(m(f)= \inf \{\|f(t)\|: t\in T\}\).
Jiménez-Vargas, A   +2 more
openaire   +2 more sources

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