English

A semidefinite programming characterization of the Crawford number

Numerical Analysis 2026-03-04 v2 Numerical Analysis

Abstract

We give a semidefinite programming characterization of the Crawford number. We show that the computation of the Crawford number within ε\varepsilon precision is computable in polynomial time in the data and logε|\log \varepsilon |.

Cite

@article{arxiv.2403.08617,
  title  = {A semidefinite programming characterization of the Crawford number},
  author = {Shmuel Friedland and Cynthia Vinzant},
  journal= {arXiv preprint arXiv:2403.08617},
  year   = {2026}
}

Comments

7 pages, revised version, to appear in Pure and Applied Functional Analysis, ISSN 2189-3756 (PRINT) ISSN 2189-3764 (ONLINE)

R2 v1 2026-06-28T15:18:52.219Z