Results 1 to 10 of about 12,244,890 (188)

Infinite dimension of solutions of the Dirichlet problem

open access: yesOpen Mathematics, 2015
It is proved that the space of solutions of the Dirichlet problem for the harmonic functions in the unit disk with nontangential boundary limits 0 a.e. has the infinite dimension.
Ryazanov Vladimir
doaj   +2 more sources

Solving a Dirichlet problem on unbounded domains via a conformal transformation [PDF]

open access: yesMathematische Annalen, 2022
In this paper, we solve the p-Dirichlet problem for Besov boundary data on unbounded uniform domains with bounded boundaries when the domain is equipped with a doubling measure satisfying a Poincaré inequality. This is accomplished by studying a class of
Ryan Gibara, R. Korte, N. Shanmugalingam
semanticscholar   +1 more source

Existence of radial solutions for a p ( x ) $p(x)$ -Laplacian Dirichlet problem

open access: yesAdvances in Differential Equations, 2021
In this paper, using variational methods, we prove the existence of at least one positive radial solution for the generalized p ( x ) $p(x)$ -Laplacian problem − Δ p ( x ) u + R ( x ) u p ( x ) − 2 u = a ( x ) | u | q ( x ) − 2 u − b ( x ) | u | r ( x ) −
M. Ragusa, A. Razani, F. Safari
semanticscholar   +1 more source

The Cauchy–Dirichlet problem for the Moore–Gibson–Thompson equation [PDF]

open access: yesComptes rendus. Mathematique, 2020
The Cauchy-Dirichlet problem for the Moore-Gibson-Thompson equation is analyzed. With the focus on non-homogeneous boundary data, two approaches are offered: one is based on the theory of hyperbolic systems, while the other one uses the theory of ...
F. Bucci, M. Eller
semanticscholar   +1 more source

On the bounds of the sum of eigenvalues for a Dirichlet problem involving mixed fractional Laplacians [PDF]

open access: yesJournal of Differential Equations, 2020
In this paper, we show the existence of a sequence of eigenvalues for a Dirichlet problem involving two mixed fractional operators with different orders. We provide lower and upper bounds for the sum of the eigenvalues.
Huyuan Chen, M. Bhakta, H. Hajaiej
semanticscholar   +1 more source

On Green’s Function of the Dirichlet Problem for the Polyharmonic Equation in the Ball

open access: yesAxioms, 2023
The paper gives an explicit representation of the Green’s function of the Dirichlet boundary value problem for the polyharmonic equation in the unit ball. The solution of the homogeneous Dirichlet problem is found.
Valery Karachik
doaj   +1 more source

Parabolic and elliptic equations with singular or degenerate coefficients: The Dirichlet problem [PDF]

open access: yes, 2020
We consider the Dirichlet problem for a class of elliptic and parabolic equations in the upper-half space $\mathbb{R}^d_+$, where the coefficients are the product of $x_d^\alpha, \alpha \in (-\infty, 1),$ and a bounded uniformly elliptic matrix of ...
Hongjie Dong, T. Phan
semanticscholar   +1 more source

Higher order Nevanlinna functions and the inverse three spectra problem [PDF]

open access: yesOpuscula Mathematica, 2016
The three spectra problem of recovering the Sturm-Liouville equation by the spectrum of the Dirichlet-Dirichlet boundary value problem on \([0,a]\), the Dirichlet-Dirichlet problem on \([0,a/2]\) and the Neumann-Dirichlet problem on \([a/2,a]\) is ...
Olga Boyko   +2 more
doaj   +1 more source

Numerical Analysis of Fourier Finite Volume Element Method for Dirichlet Boundary Optimal Control Problems Governed by Elliptic PDEs on Complex Connected Domains

open access: yesMathematics, 2022
In this research, we investigate an optimal control problem governed by elliptic PDEs with Dirichlet boundary conditions on complex connected domains, which can be utilized to model the cooling process of concrete dam pouring.
Mengya Su, Liuqing Xie, Zhiyue Zhang
doaj   +1 more source

Dirichlet Problem with L1(S) Boundary Values

open access: yesAxioms, 2022
Let D be a connected bounded domain in R2, S be its boundary, which is closed and C2-smooth. Consider the Dirichlet problem Δu=0inD,u|S=h, where h∈L1(S).
Alexander G. Ramm
doaj   +1 more source

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