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Main Author: Bongartz, Klaus
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2502.10926
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author Bongartz, Klaus
author_facet Bongartz, Klaus
contents We answer two questions posed 1998 in the book 'Arnolds problems'. First, over any field k there is a representative system for the similarity classes of nxn-matrices which is a finite disjoint union of affine subspaces. And second, for n>1 an analogous statement fails for pairs of nxn-matrices over any algebraically closed field of characteristic 0.
format Preprint
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institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On normal forms for the similarity classes of matrices and pairs of matrices
Bongartz, Klaus
Representation Theory
We answer two questions posed 1998 in the book 'Arnolds problems'. First, over any field k there is a representative system for the similarity classes of nxn-matrices which is a finite disjoint union of affine subspaces. And second, for n>1 an analogous statement fails for pairs of nxn-matrices over any algebraically closed field of characteristic 0.
title On normal forms for the similarity classes of matrices and pairs of matrices
topic Representation Theory
url https://arxiv.org/abs/2502.10926