English

On Element SDD Approximability

Numerical Analysis 2009-11-04 v1

Abstract

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.

Cite

@article{arxiv.0911.0547,
  title  = {On Element SDD Approximability},
  author = {Haim Avron and Gil Shklarski and Sivan Toledo},
  journal= {arXiv preprint arXiv:0911.0547},
  year   = {2009}
}

Comments

6 pages

R2 v1 2026-06-21T14:06:51.982Z