We find that with uniform mesh, the numerical schemes derived from finite element method can keep a preserved symplectic structure in one-dimensional case and a preserved multisymplectic structure in two-dimentional case in certain discrete version respectively. These results are in fact the intrinsic reason that the numerical experiments indicate that such finite element algorithms are accurat...

In this article we consider an n-dimentional thermoelastic system with a viscoelastic damping localized on a part of the boundary. We establish an explicit and general decay rate result that allows a larger class of relaxation functions and generalizes previous results existing in the literature.

This article presents the recent work we are carrying out regarding SDIF file manipulation and SDIF sound description data representation in the Computer Assisted Composition environment OpenMusic. It explains how we use it to integrate sound processing and descriptions in the compositionnal field. Particularly, it introduces a new OpenGL based 3-dimentional SDIF file editor which we