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On real algebras generated by positive and nonnegative matrices
Published 28 Jul 2020 in math.CO and math.RA | (2007.14194v1)
Abstract: Algebras generated by strictly positive matrices are described up to similarity, including the commutative, simple, and semisimple cases. We provide sufficient conditions for some block diagonal matrix algebras to be generated by a set of nonnegative matrices up to similarity. Also we find all realizable dimensions of algebras generated by two nonnegative semi-commuting matrices. The last result provides the solution to the problem posed by M. Kandi\'{c}, K. \v{S}ivic (2017).
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