By
MESUT ŞAHİN
(HACETTEPE unıversıty)
Abstract: In this talk, we introduce monomial curves, toric
ideals and monomial algebras associated to 4-generated pseudo symmetric
numerical semigroups. We give a characterization of indispensable binomials of
these toric ideals, and of these monomial algebras to
have strongly indispensable minimal graded free resolutions. We also discuss
when the tangent cones of these monomial curves at the origin are
Cohen-Macaulay in which case Sally's conjecture will be true. Joint with Nil Şahin of Bilkent University. Supported by Tubitak
No:114F094.
Date: Friday, December 18, 2015
Time: 15.40
Place: Mathematics Seminar Room, SA – 141
Tea and cookies will be served before the
seminar.