Ryser's Conjecture under eigenvalue conditions

Autor:	Luis H. Gallardo
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	Mathematics::Number Theory Hadamard matrices circulant matrices eigenvalues cyclotomic polynomials congruences
Zdroj:	Mathematical Communications Volume 24 Issue 2
ISSN:	1848-8013 1331-0623
Popis:	We prove the nonexistence of a circulant Hadamard matrix H of order n, under technical conditions on the eigenvalues of H, when n has only two odd prime divisors and in the general case
Databáze:	OpenAIRE
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