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  • Research Article
  • Open Access

On a shock problem involving a nonlinear viscoelastic bar

  • Nguyen Thanh Long1Email author,
  • Alain Pham Ngoc Dinh2 and
  • Tran Ngoc Diem1
Boundary Value Problems20052005:718156

Received: 3 August 2004

Published: 13 November 2005


We treat an initial boundary value problem for a nonlinear wave equation in the domain , . The boundary condition at the boundary point of the domain for a solution involves a time convolution term of the boundary value of at , whereas the boundary condition at the other boundary point is of the form with and given nonnegative constants. We prove existence of a unique solution of such a problem in classical Sobolev spaces. The proof is based on a Galerkin-type approximation, various energy estimates, and compactness arguments. In the case of , the regularity of solutions is studied also. Finally, we obtain an asymptotic expansion of the solution of this problem up to order in two small parameters , .

Authors’ Affiliations

Department of Mathematics and Computer Science, University of Natural Science, HoChiMinh City, Vietnam
Laboratoire de Mathématiques et Applications, physique Mathématique d'Orléans (MAPMO), UMR 6628, Bâtiment de Mathématiques, Université d'Orléans, Orléans Cedex 2, France


© Long et al. 2005