%0 Journal Article
%T Ryser's Conjecture under eigenvalue conditions
%A Gallardo
%A Luis H.
%J -
%D 2019
%X Sa£żetak 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 cas
%K Hadamard matrices
%K circulant matrices
%K eigenvalues
%K cyclotomic polynomials
%K congruences
%U https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=330690