Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4631372 | Applied Mathematics and Computation | 2012 | 21 Pages |
Abstract
We prove a priori error estimates for a parabolic second order transmission problem across a prefractal interface Kn of Koch type which divides a given domain Ω into two non-convex sub-domains Ωni. By exploiting some regularity results for the solution in Ωni we build a suitable mesh, compliant with the so-called “Grisvard” conditions, which allows to achieve an optimal rate of convergence for the semidiscrete approximation of the prefractal problem by Galerkin method. The discretization in time is carried out by the θ-method.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Maria Rosaria Lancia, Massimo Cefalo, Guido Dell'Acqua,