Artículos de revistas
Combinatorial classification of piecewise hereditary algebras
Fecha
2011-01Registro en:
Lanzilotta, Marcelo; Redondo, Maria Julia; Taillefer, Rachel; Combinatorial classification of piecewise hereditary algebras; De Gruyter; Forum Mathematicum; 23; 6; 1-2011; 1203-1215
0933-7741
1435-5337
Autor
Lanzilotta, Marcelo
Redondo, Maria Julia
Taillefer, Rachel
Resumen
We use the characteristic polynomial of the Coxeter matrix of an algebra to complete the combinatorial classification of piecewise hereditary algebras which Happel gave in terms of the trace of the Coxeter matrix. We also give a cohomological interpretation of the coefficients (other than the trace) of the characteristic polynomial of the Coxeter matrix of any finite dimensional algebra with finite global dimension.