Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4600916 | Linear Algebra and its Applications | 2012 | 29 Pages |
Abstract
The variety C2(A) of pairs of commuting matrices in the centralizer of n×n matrix A is known to be irreducible if A is 2-regular matrix. We prove that the variety C2(A) is irreducible also for 3-regular matrices A and in some 4-regular cases, but on the other hand, it can be reducible if A is 5-regular matrix.
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Physical Sciences and Engineering
Mathematics
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