Results 11 to 20 of about 7,566,926 (308)
PDE comparison principles for Robin problems [PDF]
Canadian Journal of Mathematics, 2021 AbstractWe compare the solutions of two Poisson problems in a spherical shell with Robin boundary conditions, one with given data, and one where the data have been cap symmetrized. When the Robin parameters are nonnegative, we show that the solution to the symmetrized problem has larger convex means. Sending one of the Robin parameters to $+\infty $ ,
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A COMPARISON OF VARIOUS ANALYTIC CHOICE PRINCIPLES [PDF]
The Journal of Symbolic Logic, 2021 AbstractWe investigate computability theoretic and descriptive set theoretic contents of various kinds of analytic choice principles by performing a detailed analysis of the Medvedev lattice of $\Sigma ^1_1$ -closed sets. Among others, we solve an open problem on the Weihrauch degree of the parallelization of the $\Sigma ^1_1$ -choice principle on ...
Anglès D'Auriac, Paul-Elliot +1 more
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Comparison Principle for Elliptic Equations with Mixed Singular Nonlinearities [PDF]
Potential Analysis, 2019 We deal with existence and uniqueness of positive solutions of an elliptic boundary value problem modeled by −Δpu=fuγ+guqinΩ,u=0on∂Ω,\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb ...
Riccardo Durastanti, F. Oliva
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A comparison principle for random walk on dynamical percolation [PDF]
Annals of Probability, 2019 We consider the model of random walk on dynamical percolation introduced by Peres, Stauffer and Steif (2015). We obtain comparison results for this model for hitting and mixing times and for the spectral-gap and log-Sobolev constant with the ...
J. Hermon, Perla Sousi
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A comparison principle for large deviations [PDF]
Proceedings of the American Mathematical Society, 1988 If { μ n } \{ {\mu _n}\} and { ν n } \left \{ {{\nu _n}} \right \} are two sequences of probability measures on a separable metric space, we give ...
Baxter, John R., Jain, Naresh C.
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Fractal and Fractional, 2022 We deal with backward stochastic differential equations driven by a pure jump Markov process and an independent Brownian motion (BSDEJs for short). We start by proving the existence and uniqueness of the solutions for this type of equation and present a ...
Khaoula Abdelhadi +3 more
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A comparison principle for convolution measures with applications [PDF]
Mathematical Proceedings of the Cambridge Philosophical Society, 2018 We establish the general form of a geometric comparison principle for n-fold convolutions of certain singular measures in ℝd which holds for arbitrary n and d.
Diogo Oliveira e Silva, R. Quilodrán
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Motion by crystalline-like mean curvature: A survey
Bulletin of Mathematical Sciences, 2022 We consider a class of anisotropic curvature flows called crystalline curvature flows. We present a survey on this class of flows with special emphasis on the well-posedness of its initial value problem.
Yoshikazu Giga, Norbert Požár
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A comparison principle for nonlinear heat Rockland operators on graded groups [PDF]
Bulletin of the London Mathematical Society, 2018 In this note we show a comparison principle for nonlinear heat Rockland operators on graded groups. We give a simple proof for it using purely algebraic relations.
Michael Ruzhansky, D. Suragan
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A simple proof of a strong comparison principle for semicontinuous viscosity solutions of the prescribed mean curvature equation [PDF]
Nonlinear Analysis, 2018 A strong comparison principle for semicontinuous viscosity solutions of the prescribed mean curvature equation is considered. The difficulties of the problem come from the fact that this nonlinear equation is non-uniformly elliptic, does not depend on ...
M. Ohnuma, Shigeru Sakaguchi
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