Coberturas Por Dominos
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1. TILINGS OF DISKS WITH HOLES / COBERTURAS DE DISCOS COM BURACOS
Tilings of a quadriculated disk with holes D are counted according to vol- ume (in the formal variabel q) and flux (in p1; p2;... pN). We consider algebraic properties of the resulting generating function D (p1; p2; ...; pk; q). For p1; p2; ...; bpi; ...; pn; q >0 the polynomial f(pi) = D (p1; p2; ... ; pi; ...; pn; q) has all roots real numbers (and negativ
Publicado em: 2006