Article,

Ghost Penalty

.
Comptes Rendus Mathematique, 348 (21-22): 1217--1220 (Nov 28, 2010)
DOI: 10.1016/j.crma.2010.10.006

Abstract

In this Note we discuss a simple penalty method that allows to increase the robustness of fictitious domain methods. In particular the condition number of the matrix can be upper bounded independently of how the domain boundary intersects the computational mesh, under rather weak assumptions.

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