INVESTIGADORES
TREPODE Sonia Elisabet
artículos
Título:
Quotients of incidence algebras and the Euler characteristic
Autor/es:
IBRAHIM ASSEM; DIANE CASTONGUAY; EDUARDO MARCOS; SONIA TREPODE
Revista:
COMMUNICATIONS IN ALGEBRA
Editorial:
Taylor & Francis
Referencias:
Año: 2007 vol. 75 p. 1075 - 1086
ISSN:
0092-7872
Resumen:
only if IA has a generating set consisting of exactly Xö(QA) elements, whereIn this note, we show that, if A = kQA/IA is a schurian strongly simply connected algebra given by its normed presentation, and Sigma is the unique poset whose oriented Hasse diagram coincides with QA, then A = k Sigma if and only if IA has a generating set consisting of exactly Xö(QA) elements, where A is a simply connected algebra given by its normed presentation.,
