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Number of characteristic polynomials of matrices with bounded height

Mérai, László and Shparlinski, Igor E. (2025) Number of characteristic polynomials of matrices with bounded height. Linear Algebra and its Applications, 712. pp. 1-8. ISSN 00243795

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Abstract

We consider the set Mn(Z;H) of nxn-matrices with integer elements of size at most H and obtain upper and lower bounds on the number of distinct irreducible characteristic polynomials which correspond to these matrices and thus on the number of distinct eigenvalues of these matrices. In particular, we improve some results of A. Abrams, Z. Landau, J. Pommersheim and N. Srivastava (2022).

Item Type: Article
Uncontrolled Keywords: Matrices, multiplicative dependence, matrix equation, abelianisation
Subjects: Q Science / természettudomány > QA Mathematics / matematika
Depositing User: Dr. László Mérai
Date Deposited: 25 Sep 2025 13:12
Last Modified: 25 Sep 2025 13:12
URI: https://real.mtak.hu/id/eprint/225375

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