Briales Morales, EmilioPisón Casares, Pilar2016-11-162016-11-161998Briales Morales, E. y Pisón Casares, P. (1998). Combinatorics of syzygies for semigroup algebras. Collectanea Mathematica, 49 (2-3), 239-256.0010-07572038-4815http://hdl.handle.net/11441/48754We describe how the graded minimal resolution of certain semigroup algebras is related to the combinatorics of some simplicial complexes. We obtain characterizations of the Cohen-Macaulay and Gorenstein conditions. The Cohen-Macaulay type is computed from combinatorics. As an application, we compute explicitly the graded minimal resolution of monomial both affine and simplicial projective surfaces.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess