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In this paper, we mainly establish the existence and uniqueness theorem for solutions of the exterior Dirichlet problem for a class of fully nonlinear second-order elliptic equations related to the eigenvalues of the Hessian, with…

Analysis of PDEs · Mathematics 2020-05-08 Tangyu Jiang , Haigang Li , Xiaoliang Li

In the present study we consider an example of a boundary value problem for a simple second order ordinary differential equation, which may exhibit a boundary layer phenomenon. We show that usual central finite differences, which are second…

Numerical Analysis · Mathematics 2020-02-20 Gayaz Khakimzyanov , Denys Dutykh

We investigate the realization of a myriad of general local and nonlocal inhomogeneous elliptic and parabolic boundary value problems over classes of irregular regions. We present a unified approach in which either local or nonlocal…

Analysis of PDEs · Mathematics 2026-02-10 Maria R. Lancia , Alejandro Vélez-Santiago

When studying boundary value problems for some partial differential equations arising in applied mathematics, we often have to study the solution of a system of partial differential equations satisfied by hypergeometric functions and find…

Classical Analysis and ODEs · Mathematics 2020-05-26 Michael Ruzhansky , Anvar Hasanov

The stationary, axisymmetric reduction of the vacuum Einstein equations, the so-called Ernst equation, is an integrable nonlinear PDE in two dimensions. There now exists a general method for analyzing boundary value problems for integrable…

Exactly Solvable and Integrable Systems · Physics 2009-11-11 J. Lenells , A. S. Fokas

Consider positive solutions to second order elliptic equations with measurable coefficients in a bounded domain, which vanish on a portion of the boundary. We give simple necessary and sufficient geometric conditions on the domain, which…

Analysis of PDEs · Mathematics 2008-10-03 Mikhail V. Safonov

First, we obtain a new formula for Bremermann type upper envelopes, that arise frequently in convex analysis and pluripotential theory, in terms of the Legendre transform of the convex- or plurisubharmonic-envelope of the boundary data.…

Analysis of PDEs · Mathematics 2016-07-05 Tamás Darvas , Yanir A. Rubinstein

In this paper, we are concerned with game-theoretic interpretations to the following oblique derivative boundary value problem \begin{align*} \left\{ \begin{array}{ll} \Delta_{p}^{N}u=0 & \textrm{in $ \Omega$,}\\ \langle \beta , Du \rangle…

Analysis of PDEs · Mathematics 2024-11-28 Jeongmin Han

Writing the boundary integral equation for an exterior problem of elasticity is subordinate so far to hypotheses on the asymptotical behaviour at infinity of solutions. The sufficient conditions met in the literature are too restrictive and…

Classical Physics · Physics 2009-11-13 Alain Corfdir , Guy Bonnet

Boundary value problems for second-order elliptic equations in divergence form, whose nonlinearity is governed by a convex function of non-necessarily power type, are considered. The global boundedness of their solutions is established…

Analysis of PDEs · Mathematics 2022-07-18 Giuseppina Barletta , Andrea Cianchi , Greta Marino

We study the solvability of the second boundary value problem of the Lagrangian mean curvature equation arising from special Lagrangian geometry. By the parabolic method we obtain the existence and uniqueness of the smooth uniformly convex…

Analysis of PDEs · Mathematics 2020-03-12 C. Wang , R. L. Huang , J. G. Bao

The quasi-variational inequalities play a significant role in analyzing a wide range of real-world problems. However, these problems are more complicated to solve than variational inequalities as the constraint set is based on the current…

Optimization and Control · Mathematics 2024-07-29 Asrifa Sultana , Shivani Valecha

In this article, we give a unified theory for constructing boundary layer expansions for dis-cretized transport equations with homogeneous Dirichlet boundary conditions. We exhibit a natural assumption on the discretization under which the…

Analysis of PDEs · Mathematics 2021-10-01 Benjamin Boutin , Jean-François Coulombel

We study the solvability of singular Abreu equations which arise in the approximation of convex functionals subject to a convexity constraint. Previous works established the solvability of their second boundary value problems either in two…

Analysis of PDEs · Mathematics 2024-08-06 Young Ho Kim , Nam Q. Le , Ling Wang , Bin Zhou

Given an optimization problem, the Hessian matrix and its eigenspectrum can be used in many ways, ranging from designing more efficient second-order algorithms to performing model analysis and regression diagnostics. When nonlinear models…

Machine Learning · Statistics 2021-03-18 Zhenyu Liao , Michael W. Mahoney

We investigate solvability of a continuous Dirichlet boundary value problem together with its classical discretization using a gobal diffeomorphism theorem.

Classical Analysis and ODEs · Mathematics 2017-11-29 Michał Bełdziński , Marek Galewski

We obtain some "universal" estimates for $L_2$-norm of the solution of a parabolic equation via a weighted version of $H^{-1}$-norm of the free term. More precisely, we found the limit upper estimate that can be achieved by transformation…

Analysis of PDEs · Mathematics 2008-05-09 Nikolai Dokuchaev

A general form of the Lions-Magenes theorems on solvability of an elliptic boundary-value problem in the spaces of nonregular distributions is proved. We find a general condition on the space of right-hand sides of the elliptic equation…

Analysis of PDEs · Mathematics 2009-07-19 Aleksandr A. Murach

We consider a nonlinear Neumann problem, with periodic oscillation in the elliptic operator and on the boundary condition. Our focus is on problems posed in half-spaces, but with general normal directions that may not be parallel to the…

Analysis of PDEs · Mathematics 2019-11-19 Sunhi Choi , Inwon Kim

Higher regularity estimate has been a challenging question for the Boltzmann equation in bounded domains. Indeed, it is well-known to have "the non-existence of a second order derivative at the boundary" in [15] even for symmetric convex…

Analysis of PDEs · Mathematics 2021-03-29 Hongxu Chen , Chanwoo Kim