English

A computing strategy and programs to resolve the Gerstenhaber Problem for commuting triples of matrices

Commutative Algebra 2020-06-16 v1 Combinatorics

Abstract

We describe a MATLAB program that could produce a negative answer to the Gerstenhaber Problem by the construction of three commuting n×nn \times n matrices A,B,CA,B,C over a field FF such that the subalgebra F[A,B,C]F[A,B,C] they generate has dimension greater than nn. This problem has remained open for nearly 60 years, following Gerstenhaber's surprising result (Annals Math.) that dimF[A,B]n\dim F[A,B] \le n for any two commuting matrices A,BA,B. The property fails for four or more commuting matrices. We also make the MATLAB files freely available.

Cite

@article{arxiv.2006.08588,
  title  = {A computing strategy and programs to resolve the Gerstenhaber Problem for commuting triples of matrices},
  author = {John Holbrook and Kevin C. O'Meara},
  journal= {arXiv preprint arXiv:2006.08588},
  year   = {2020}
}
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