Results 21 to 30 of about 172 (136)

Multiple Solutions of Dirichlet Problem for Semilinear Elliptic Equations at Resonance [PDF]

open access: yes, 2000
Multiplicity results are obtained, by the minimax method, for solutions of the Dirichlet problem for semilinear elliptic equations at resonance with unbounded and nonautonomous non-linearities.
Liu Shui-Qiang, Shui-Qiang, Liu
core   +1 more source

The Poisson equation in homogeneous Sobolev spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 36, Page 1909-1921, 2004., 2004
We consider Poisson′s equation in an n‐dimensional exterior domain G(n ≥ 2) with a sufficiently smooth boundary. We prove that for external forces and boundary values given in certain Lq(G)‐spaces there exists a solution in the homogeneous Sobolev space S2,q(G), containing functions being local in Lq(G) and having second‐order derivatives in Lq(G ...
Tatiana Samrowski, Werner Varnhorn
wiley   +1 more source

Weierstraß-Institut für Angewandte Analysis und Stochastik Interpolation for function spaces related to mixed boundary value problems Dedicated to Helga Rothkirch [PDF]

open access: yes, 2020
Interpolation theorems are proved for Sobolev spaces of functions on nonsmooth domains with vanishing trace on a part of the boundary.
Joachim Rehberg   +5 more
core  

A finite‐dimensional reduction method for slightly supercritical elliptic problems

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 8, Page 683-689, 2004., 2004
We describe a finite‐dimensional reduction method to find solutions for a class of slightly supercritical elliptic problems. A suitable truncation argument allows us to work in the usual Sobolev space even in the presence of supercritical nonlinearities: we modify the supercritical term in such a way to have subcritical approximating problems; for ...
Riccardo Molle, Donato Passaseo
wiley   +1 more source

Examples of non-Dini domains with large singular sets

open access: yesAdvanced Nonlinear Studies, 2023
Let uu be a nontrivial harmonic function in a domain D⊂RdD\subset {{\mathbb{R}}}^{d}, which vanishes on an open set of the boundary. In a recent article, we showed that if DD is a C1{C}^{1}-Dini domain, then, within the open set, the singular set of uu ...
Kenig Carlos, Zhao Zihui
doaj   +1 more source

A functionally-analytic method for modelling axial-symmetric flows of ideal fluid

open access: yesDemonstratio Mathematica, 2019
We consider axial-symmetric stationary flows of the ideal incompressible fluid as an important case of potential solenoid fields. We use an integral expression of the Stokes flow function via the corresponding complex analytic function for solving a ...
Plaksa Sergiy A.
doaj   +1 more source

Multiplicity of concentrating solutions for a class of magnetic Schrödinger-Poisson type equation

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper, we study the following nonlinear magnetic Schrödinger-Poisson type ...
Liu Yueli, Li Xu, Ji Chao
doaj   +1 more source

Capillary Schwarz symmetrization in the half-space

open access: yesAdvanced Nonlinear Studies, 2023
In this article, we introduce a notion of capillary Schwarz symmetrization in the half-space. It can be viewed as the counterpart of the classical Schwarz symmetrization in the framework of capillary problem in the half-space.
Lu Zheng, Xia Chao, Zhang Xuwen
doaj   +1 more source

An elliptic problem with critical exponent and positive Hardy potential

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 2, Page 91-98, 2004., 2004
We give the existence result and the vanishing order of the solution in 0 for the following equation: −Δu(x) + (μ/|x|2)u(x) = λu(x) + u2*−1(x), where x ∈ B1, μ > 0, and the potential μ/|x|2 − λ is positive in B1.
Shaowei Chen, Shujie Li
wiley   +1 more source

Logistic equation with the p‐Laplacian and constant yield harvesting

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 9, Page 723-727, 2004., 2004
We consider the positive solutions of a quasilinear elliptic equation with p‐Laplacian, logistic‐type growth rate function, and a constant yield harvesting. We use sub‐super‐solution methods to prove the existence of a maximal positive solution when the harvesting rate is under a certain positive constant.
Shobha Oruganti   +2 more
wiley   +1 more source

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