Results 11 to 20 of about 9,917 (252)
Existence, uniqueness, and stability of best and near-best approximations
Russian Mathematical Surveys, 2023 Existence and stability of $\varepsilon$-selections (selections of operators of near-best approximation) are studied. Results relating the existence of continuous $\varepsilon$-selections with other approximative and structural properties of ...
A. Alimov +2 more
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R\'enyi generalizations of quantum information measures [PDF]
, 2014 Quantum information measures such as the entropy and the mutual information find applications in physics, e.g., as correlation measures. Generalizing such measures based on the R\'enyi entropies is expected to enhance their scope in applications.
Berta, Mario +2 more
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A Proximal-Projection Method for Finding Zeros of Set-Valued Operators [PDF]
SIAM Journal of Control and Optimization, 2007 In this paper we study the convergence of an iterative algorithm for finding zeros with constraints for not necessarily monotone set-valued operators in a reflexive Banach space.
D. Butnariu, G. Kassay
semanticscholar +1 more source
General monotonicity and interpolation of operators
Journal of Mathematical Analysis and Applications, 2016 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Stepan M. Grigoriev +2 more
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Normal forms and entanglement measures for multipartite quantum states [PDF]
, 2003 A general mathematical framework is presented to describe local equivalence classes of multipartite quantum states under the action of local unitary and local filtering operations.
A. Acín +17 more
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Generalizations of the Lax-Milgram theorem [PDF]
, 2007 We prove a linear and a nonlinear generalization of the Lax-Milgram theorem. In particular we give sufficient conditions for a real-valued function defined on the product of a reflexive Banach space and a normed space to represent all bounded linear ...
Drivaliaris, D., Yannakakis, N.
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Coupled fixed point theorems for generalized symmetric Meir-Keeler contractions in ordered metric spaces [PDF]
Fixed Point Theory and Applications, 2011 In this paper we introduce generalized symmetric Meir-Keeler contractions and prove some coupled fixed point theorems for mixed monotone operators F:X×X→X in partially ordered metric spaces.
V. Berinde, M. Pacurar
semanticscholar +2 more sources
On θ-generalized demimetric mappings and monotone operators in Hadamard spaces
Demonstratio Mathematica, 2020 AbstractOur main interest in this article is to introduce and study the class of θ-generalized demimetric mappings in Hadamard spaces. Also, a Halpern-type proximal point algorithm comprising this class of mappings and resolvents of monotone operators is proposed, and we prove that it converges strongly to a fixed point of a θ-generalized demimetric ...
Ogwo Grace N. +3 more
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On the Geometric Measures of Entanglement [PDF]
, 2010 The geometric measure of entanglement, which expresses the minimum distance to product states, has been generalized to distances to sets that remain invariant under the stochastic reducibility relation.
Turgut, S., Uyanik, K.
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Entropy Solution Theory for Fractional Degenerate Convection-Diffusion Equations [PDF]
, 2010 We study a class of degenerate convection diffusion equations with a fractional nonlinear diffusion term. These equations are natural generalizations of anomalous diffusion equations, fractional conservations laws, local convection diffusion equations ...
Alibaud +38 more
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