Results 1 to 10 of about 54,325 (210)

Nonlinear PDEs approach to statistical mechanics of dense associative memories [PDF]

open access: yesJournal of Mathematics and Physics, 2022
Dense associative memories (DAMs) are widely used models in artificial intelligence for pattern recognition tasks; computationally, they have been proven to be robust against adversarial inputs and, theoretically, leveraging their analogy with spin-glass
E. Agliari, A. Fachechi, Chiara Marullo
semanticscholar   +1 more source

Neural network architectures using min-plus algebra for solving certain high-dimensional optimal control problems and Hamilton–Jacobi PDEs [PDF]

open access: yesMCSS. Mathematics of Control, Signals and Systems, 2021
Solving high-dimensional optimal control problems and corresponding Hamilton–Jacobi PDEs are important but challenging problems in control engineering. In this paper, we propose two abstract neural network architectures which are, respectively, used to ...
J. Darbon, P. Dower, Tingwei Meng
semanticscholar   +1 more source

Near-optimal approximation methods for elliptic PDEs with lognormal coefficients [PDF]

open access: yesMathematics of Computation, 2021
This paper studies numerical methods for the approximation of elliptic PDEs with lognormal coefficients of the form $-{\rm div}(a\nabla u)=f$ where $a=\exp(b)$ and $b$ is a Gaussian random field.
A. Cohen, G. Migliorati
semanticscholar   +1 more source

Mathematical Analysis of Unsteady Stagnation Point Flow of Radiative Casson Hybrid Nanofluid Flow over a Vertical Riga Sheet

open access: yesMathematics, 2022
Heat and mass transfer study of hybrid nanomaterial Casson fluid with time-dependent flow over a vertical Riga sheet was deliberated under the stagnation region.
Taqi A. M. Shatnawi   +2 more
semanticscholar   +1 more source

Analysis of entropy generation and nonlinear convection on unsteady flow of MHD Prandtl fluid with Soret and Dufour effects

open access: yesArabian Journal of Mathematics, 2022
Here the assessment of entropy generation with Soret and Dufour impact in flow of MHD Prandtl fluid along an unsteady stretching surface has been measured.
S. Asad, Shehnila Riaz
semanticscholar   +1 more source

A class of second-order geometric quasilinear hyperbolic PDEs and their application in imaging science [PDF]

open access: yes, 2019
In this paper, we study damped second-order dynamics, which are quasilinear hyperbolic partial differential equations (PDEs). This is inspired by the recent development of second-order damping systems for accelerating energy decay of gradient flows.
Dong, Guozhi   +2 more
core   +3 more sources

Decay Estimates for 1-D Parabolic PDEs with Boundary Disturbances [PDF]

open access: yes, 2017
In this work decay estimates are derived for the solutions of 1-D linear parabolic PDEs with disturbances at both boundaries and distributed disturbances. The decay estimates are given in the L2 and H1 norms of the solution and discontinuous disturbances
Karafyllis, Iasson, Krstic, Miroslav
core   +2 more sources

Abstract robust coarse spaces for systems of PDEs via generalized eigenproblems in the overlaps [PDF]

open access: yes, 2013
Coarse spaces are instrumental in obtaining scalability for domain decomposition methods for partial differential equations (PDEs). However, it is known that most popular choices of coarse spaces perform rather weakly in the presence of heterogeneities ...
AV Knyazev   +24 more
core   +1 more source

Weak Continuity and Compactness for Nonlinear Partial Differential Equations [PDF]

open access: yes, 2015
We present several examples of fundamental problems involving weak continuity and compactness for nonlinear partial differential equations, in which compensated compactness and related ideas have played a significant role.
Chen, Gui-Qiang G.
core   +1 more source

Analysis of Schwarz methods for a hybridizable discontinuous Galerkin discretization: The many-subdomain case [PDF]

open access: yesMathematics of Computation, 2016
Schwarz methods are attractive parallel solution techniques for solving large-scale linear systems obtained from discretizations of partial differential equations (PDEs).
M. Gander, Soheil Hajian
semanticscholar   +1 more source

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