Results 21 to 30 of about 5,309,525 (360)
Exact QFT duals of AdS black holes
Journal of High Energy Physics, 2023 We construct large N saddle points of the matrix model for the N $$ \mathcal{N} $$ = 4 Yang- Mills index dual to the BPS black holes in AdS 5 × S 5, in two different setups.
Sunjin Choi +3 more
doaj +1 more source
Leakage threshold of a saddle point
Tribology Letters, 2022 Abstract The threshold condition for leakage inception is of great interest to many engineering applications, and it is essential for seal design. In the current study, the leakage threshold is studied by means of a numerical method for a mechanical contact problem between an elastic bisinusoidal surface and a rigid flat surface.
Huang, De +3 more
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Zeroth-Order Algorithms for Smooth Saddle-Point Problems [PDF]
Communications in Computer and Information Science, 2020 In recent years, the importance of saddle-point problems in machine learning has increased. This is due to the popularity of GANs. In this paper, we solve stochastic smooth (strongly) convex-concave saddle-point problems using zeroth-order oracles ...
Abdurakhmon Sadiev +3 more
semanticscholar +1 more source
Axioms, 2023 This paper is devoted to the investigation of optimality conditions and saddle point theorems for robust approximate quasi-weak efficient solutions for a nonsmooth uncertain multiobjective fractional semi-infinite optimization problem (NUMFP). Firstly, a
Liu Gao, Guolin Yu, Wenyan Han
doaj +1 more source
A Primal-Dual Algorithm with Line Search for General Convex-Concave Saddle Point Problems
SIAM Journal on Optimization, 2020 In this paper, we propose a primal-dual algorithm with a novel momentum term using the partial gradients of the coupling function that can be viewed as a generalization of the method proposed by Chambolle and Pock in 2016 to solve saddle point problems ...
E. Y. Hamedani, N. Aybat
semanticscholar +1 more source
The Saddle Point Problem of Polynomials [PDF]
Foundations of Computational Mathematics, 2021 AbstractThis paper studies the saddle point problem of polynomials. We give an algorithm for computing saddle points. It is based on solving Lasserre’s hierarchy of semidefinite relaxations. Under some genericity assumptions on defining polynomials, we show that: (i) if there exists a saddle point, our algorithm can get one by solving a finite ...
Zi Yang, Guangming Zhou, Jiawang Nie
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Saddle point criteria for semidefinite semi-infinite convex multiobjective optimization problems [PDF]
Yugoslav Journal of Operations Research, 2022 In this paper, we consider a nonlinear semidefinite semi-infinite convex multiobjective optimization problem where the feasible region is determined by finite number of equality and infinite number of inequality constraints.
Laha Vivek +2 more
doaj +1 more source
The Region of Validity of Homogeneous Nucleation Theory [PDF]
, 1999 We examine the region of validity of Langer's picture of homogeneous nucleation. Our approach is based on a coarse-grained free energy that incorporates the effect of fluctuations with momenta above a scale k.
A. Strumia +6 more
core +4 more sources
Learning and the saddle point property [PDF]
Economics Letters, 2001 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +4 more sources
Two-terminal conductance fluctuations in the integer quantum Hall regime [PDF]
, 1999 Motivated by recent experiments on the conductance fluctuations in mesoscopic integr quantum Hall systems, we consider a model in which the Coulomb interactions are incorporated into the picture of edge-state transport through a single saddle-point.
A. G. Galstyan +33 more
core +2 more sources