El próximo martes 29 de marzo a las 12:15 en el aula C3A del Edificio Carlos Benítez (Departamento de Matemáticas) en la Facultad de Ciencias en Badajoz, la profesora Raheleh Jafari del Mosaheb Institute of Mathematics en la Kharazmi University (Irán) impartirá la conferencia titulada «Gorenstein-like properties for affine semigroups» dentro del Colloquium del Departamento.

Resumen: For rings with a combinatorial structure behind, there are often nice characterizations of the Gorenstein property.  In this talk, we are interested in some classes of Cohen-Macaulay simplicial affine semigroup rings which are not Gorenstein, but still good, say good next to Gorenstein rings. In particular, the canonical module structure, the trace ideal and ulrich elements are discussed.