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How random is the characteristic polynomial of a random matrix ?
Journal article   Peer reviewed

How random is the characteristic polynomial of a random matrix ?

Jennie C. Hansen and Eric Schmutz
Mathematical proceedings of the Cambridge Philosophical Society, v 114(3), pp 507-515
01 Nov 1993

Abstract

Every monic, degree n polynomial in Fq[x;] is the characteristic polynomial of at least one n × n matrix (with entries in the finite field Fq), but they do not appear with equal frequency. There is no a priori reason that the characteristic polynomial of a typical matrix should resemble a typical monic degree n polynomial. Nevertheless, we prove a precise version of the following heuristic statement: ‘Excepting its small factors, the characteristic polynomial of a random matrix is random.’

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Mathematics
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