On Element SDD Approximability

Details On Element SDD Approximability On Element SDD Approximability

2009-11-03

arxiv.org/abs/0911.0547v1

Computer Science

Numerical Analysis

6 pages

Scientific paper

This short communication shows that in some cases scalar elliptic finite
element matrices cannot be approximated well by an SDD matrix. We also give a
theoretical analysis of a simple heuristic method for approximating an element
by an SDD matrix.

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