Invalidity of Decoupling a Biharmonic Equation to Two Poisson Equations on Non-Convex Polygons

Invalidity of Decoupling a Biharmonic Equation to Two Poisson Equations on Non-Convex Polygons

Year:    2008

International Journal of Numerical Analysis and Modeling, Vol. 5 (2008), Iss. 1 : pp. 73–76

Abstract

We clarify the validity of a method that decouples a boundary value problem of biharmonic equation to two Poisson equations on polygonal domains. The method provides a way of computing deflections of simply supported polygonal plates by using Poisson solvers. We show that such decoupling is not valid if the polygonal domain is not convex. It may fail even when the right hand side function is infinitely smooth and supported away from the reentrant corners.

You do not have full access to this article.

Already a Subscriber? Sign in as an individual or via your institution

Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2008-IJNAM-798

International Journal of Numerical Analysis and Modeling, Vol. 5 (2008), Iss. 1 : pp. 73–76

Published online:    2008-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    4

Keywords:    simply supported plate biharmonic Poisson decoupling.