Results 31 to 40 of about 1,917 (133)

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

Approximate symmetries in nonlinear viscoelastic media

open access: yes, 2013
Approximate symmetries of a mathematical model describing one-dimensional motion in a medium with a small nonlinear viscosity are studied. In a physical application, the approximate solution is calculated making use of the approximate generator of the ...
M. Ruggieri, A. Valenti
semanticscholar   +1 more source

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

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

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

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

On a P\'olya functional for rhombi, isosceles triangles, and thinning convex sets [PDF]

open access: yes, 2019
Let $\Omega$ be an open convex set in ${\mathbb R}^m$ with finite width, and let $v_{\Omega}$ be the torsion function for $\Omega$, i.e. the solution of $-\Delta v=1, v\in H_0^1(\Omega)$.
Berg, M. van den   +3 more
core   +2 more sources

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

Localization and multiplicity in the homogenization of nonlinear problems

open access: yesAdvances in Nonlinear Analysis, 2019
We propose a method for the localization of solutions for a class of nonlinear problems arising in the homogenization theory. The method combines concepts and results from the linear theory of PDEs, linear periodic homogenization theory, and nonlinear ...
Bunoiu Renata, Precup Radu
doaj   +1 more source

Spectral gap of segments of periodic waveguides

open access: yes, 2006
We consider a periodic strip in the plane and the associated quantum waveguide with Dirichlet boundary conditions. We analyse finite segments of the waveguide consisting of $L$ periodicity cells, equipped with periodic boundary conditions at the ``new ...
D. Borisov   +6 more
core   +2 more sources

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