نتایج جستجو برای: norme
تعداد نتایج: 583 فیلتر نتایج به سال:
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— We extend the gênerai framework of [18] for deriving a posteriori error estimâtes for approximate solutions of noniinear elliptic problems such ihat it also yields L'-error estimâtes. The gênerai results are applied to finite element discretizations of scalar quasilinear elliptic pdes of 2nd order and the stationary incompressible Navier-Stokes équations. They immediately yield a posteriori e...
We consider the three-dimensional Schrödinger operator with constant magnetic field and bounded random electric potential. We investigate the asymptotic behaviour of the integrated density of states for this operator as the norm of the magnetic field tends to infinity. Résumé On considère l’opérateur de Schrödinger tridimensionnel avec un champ magnétique constant et un potentiel électrique alé...
— Jn this paper we study the divergence operator acting on continuons piecewise polynomials ofdegree p 41, p ^ 3, on triangulations of a plane polygonal domain Q. We give a characterization of the range of the divergence operator and thefull details of a combinatorial vérification oj this. As the central resuit we show that for very gênerai families ofmeshes it is possible to jïnd a maximal rig...
We develop a new mixed formulation for the numencal solution of second-order elliptic problems This new formulation expands the standard mixed formulation in the sense that three variables are exphcitly treated the scalar unknown, its gradient, and its flux (the coefficient times the gradient) Based on this formulation, mixed finite element approximations of the second-order elliptic problems a...
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