Results 41 to 50 of about 4,578,220 (140)

Rellich-type Discrete Compactness for Some Discontinuous Galerkin FEM [PDF]

open access: yes
We deduce discrete compactness of Rellich type for some discontinuous Galerkin finite element methods (DGFEM) including hybrid ones, under fairly general settings on the triangulations and the finite element spaces.
KIKUCHI, Fumio
core  

Proof-theoretic uniform boundedness and bounded collection principles and countable Heine–Borel compactness [PDF]

open access: yes
In this note we show that proof-theoretic uniform boundedness or bounded collection principles which allow one to formalize certain instances of countable Heine–Borel compactness in proofs using abstract metric structures must be carefully distinguished ...
Kohlenbach, Ulrich
core   +1 more source

Tightness-concentration principles and compactness for evolution problems in Banach spaces

open access: yes, 2003
Compactness in the space L^p (0, T ; B), B being a separable Banach space, has been deeply investigated by J.P. Aubin (1963), J.L. Lions (1961,1969), J. Simon (1987), and, more recently, by J.M. Rakotoson and R.
SAVARE', GIUSEPPE, Rossi Riccarda
core  

Concentration-compactness principle and applications to nonlocal elliptic problems

open access: yes, 2016
The main goal of this work is to analyze concentration-compactness principles for fractional Sobolev spaces based on the concentration compactness principle of P.-L. Lions and in the pro le decomposition for weak convergence in Hilbert spaces due to K.
Souza, Diego Ferraz de
core   +1 more source

The concentration-compactness principle for Musielak-Orlicz spaces and applications

open access: yes
This paper extends the Concentration-Compactness Principle to Musielak-Orlicz spaces, working in both bounded and unbounded domains. We show that our results include important special cases like classical Orlicz spaces, variable exponent spaces, double phase spaces, and a new type of double phase problem where the exponents depend on the solution ...
Bahrouni, Ala Eddine, Bahrouni, Anouar
openaire   +2 more sources

The Concentration-Compactness Principle in the Calculus of Variations. The limit case, Part 1

open access: yesRevista Matemática Iberoamericana, 1985
After the study made in the locally compact case for variational problems with some translation invariance, we investigate here the variational problems (with constraints) for example in \mathbb R^N where the invariance of
openaire   +2 more sources

Existence of steady states for the Maxwell-Schrödinger-Poisson system: exploring the applicability of the concentration-compactness principle

open access: yes, 2013
This paper is intended to review recent results and open problems concerning the existence of steady states to the Maxwell-Schrödinger system. A combination of tools, proofs and results are presented in the framework of the concentration--compactness ...
Dolbeault, Jean   +3 more
core   +2 more sources

Concentration Compactness: Functional-Analytic Theory of Concentration Phenomena/ Cyril Tintarev.

open access: yes, 2020
In English.Includes bibliographical references and index.Concentration compactness methods are applied to PDE's that lack compactness properties, typically due to the scaling invariance of the underlying problem.
Tintarev Kyril
core  

Concentration and compactness in nonlinear Schrödinger–Poisson system with a general nonlinearity

open access: yes, 2010
In this paper we use a concentration and compactness argument to prove the existence of a nontrivial non-radial solution to the nonlinear Schrödinger–Poisson equations in R3, assuming on the nonlinearity the general hypotheses introduced by ...
AZZOLLINI, ANTONIO, A. Azzollini
core   +1 more source

The Concentration-Compactness Principle in the Calculus of Variations. The Limit Case, Part 2

open access: yesRevista Matemática Iberoamericana, 1985
This paper is the second part of a work devoted to the study of variational problems (with constraints) in functional spaces defined on domains presenting some (local) form of invariance by a non-compact group of transformations like the dilations in \mathbb R^N
openaire   +2 more sources

Home - About - Disclaimer - Privacy