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Mostrando ítems 21-30 de 169
Artículo
The space of scalarly integrable functions for a Fréchet-space-valued measure
(Elsevier, 2009)
The space L1 w (ν) of all scalarly integrable functions with respect to a Fréchet-space-valued vector measure ν is shown to be a complete Fréchet lattice with the σ-Fatou property which contains the (traditional) space ...
Artículo
The space of complete embedded maximal surfaces with isolated singularities in the 3-dimensional Lorentz-Minkowski space
(Springer, 2005)
We prove that a complete embedded maximal surface in L3 with a finite number of sin- gularities is an entire maximal graph with conelike singularities over any spacelike plane, and so, it is asymptotic to a spacelike ...
Artículo
Sediment transport models in Shallow Water equations and numerical approach by high order finite volume methods.
(Elsevier, 2008)
This paper is concerned with the numerical approximation of bedload sediment transport due to water evolution. For the hydrodynamical component we consider Shallow Water equations. The morphodynamical component is defined ...
Artículo
Algebra of derivations of Lie algebras
(Elsevier, 2001)
We show a method to determine the space of derivations of any Lie algebra, and in particular we apply this method to a special class of Lie algebras, those nilpotent with low nilindex. Most calculations have been supported ...
Artículo
Gröbner bases and logarithmic D-modules
(Elsevier, 2006)
Let C[x] = C[x1, . . . , xn] be the ring of polynomials with complex coefficients and An the Weyl algebra of order n over C. Elements in An are linear differential operators with polynomial coefficients. For each polynomial ...
Artículo
Método de elementos finitos para la aproximación de un modelo de cristales líquidos nemáticos
(Sociedad Española de Matemática Aplicada, 2009)
En esta charla analizamos la aproximación numérica con elementos finitos en espacio y diferencias finitas en tiempo de un modelo de cristales líquidos nemáticos (de tipo Eriksen-Leslie) y de un modelo penalizado de tipo ...
Artículo
Partial Differential Equations: On the existence of solutions for a strongly degenerate system
(Elsevier, 2006)
We establish the existence of a solution in a certain sense to a strongly degenerate problem consisting in a coupled nonlinear parabolic-elliptic system. The diffusion term in the parabolic equation is of the form − div ...
Artículo
When is the algebra of multisymmetric polynomials generated by the elementary multisymmetric polynomials?
(Heldermann Verlag, 2004)
Multisymmetric polynomials are the $r$-fold diagonal invariants of the symmetric group ${\mathfrak{S}}_n$. Elementary multisymmetric polynomials are analogues of the elementary symmetric polynomials, in the multisymmetric ...
Artículo
On some D-modules in dimension 2
(Cornell University, 2000)
We prove a duality formula for two D-modules arising from logarithmic derivations w.r.t. a plane curve. As an application we give a differential proof of a logarithmic comparison theorem in [4].