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2012-05-15
19:05

18 p, 217.4 KB

2012-03-22
13:49

28 p, 297.4 KB

A subspace correction method for discontinuous Galerkin discretizations of linear elasticity equations / Ayuso, B. ; Georgiev, Ivan ; Kraus, Johannes ; Zikatanov, Ludmil ; et al
We study preconditioning techniques for discontinuous Galerkin discretizations of isotropic linear elasticity problems in primal (displacement) formulation. We propose subspace correction methods based on a splitting of the vector valued piecewise linear discontinuous finite element space, that are optimal with respect to the mesh size and the Lamé parameters. [...]
Centre de Recerca Matemàtica 2011 (Prepublicacions del Centre de Recerca Matemàtica ; 1056)

2012-03-22
13:49

16 p, 241.4 KB

2012-03-22
13:49

68 p, 560.5 KB

Absolute convergence of Fourier integrals / Liflyand, E. ; Trigub, Roald M. ; Samko, S. ; Centre de Recerca Matemàtica
In this survey, results on the representation of a function as an absolutely convergent Fourier integral are collected, classified and discussed. Certain applications are also given.
Centre de Recerca Matemàtica 2011 (Prepublicacions del Centre de Recerca Matemàtica ; 1051)

2012-03-22
13:49

38 p, 488.4 KB

Dynamical systems of type (m,n) and their C*-algebras / Ara i Bertrán, Pere ; Exel, Ruy ; Katsura, Takeshi ; Centre de Recerca Matemàtica
Given positive integers n and m, we consider dynamical systems in which n copies of a topological space is homeomorphic to m copies of that same space. The universal such system is shown to arise naturally from the study of a C*-algebra we denote by Om;n, which in turn is obtained as a quotient of the well known Leavitt C*-algebra Lm;n, a process meant to transform the generating set of partial isometries of Lm;n into a tame set. [...]
Centre de Recerca Matemàtica 2011 (Prepublicacions del Centre de Recerca Matemàtica ; 1050)

2012-03-22
13:49

10 p, 185.2 KB

On a supremum operator / Stepanov, V. D. (Vladimir Dmitrievich) ; Centre de Recerca Matemàtica
Vegeu el resum a l'inici del document del fitxer adjunt.
Centre de Recerca Matemàtica 2011 (Prepublicacions del Centre de Recerca Matemàtica ; 1049)

2012-03-22
13:49

21 p, 247.2 KB

New pre-dual space of Morrey space / Gogatishvili, A. ; Mustafayev, R. Ch. ; Centre de Recerca Matemàtica
In this paper we give new characterization of the classical Morrey space. Complementary global Morrey-type spaces are introduced. It is proved that for particular values of parameters these spaces give new pre-dual space of the classical Morrey space. [...]
Centre de Recerca Matemàtica 2011 (Prepublicacions del Centre de Recerca Matemàtica ; 1048)

2012-03-22
13:49