The regularity of toric ideals of graphs
Thời gian: 14:00 đến 15:00 Ngày 24/05/2016
Địa điểm: C2-714
Báo cáo viên: Adam Van Tuy
Tóm tắt:Let G be a finite simply graph and let I_G be its toric ideal. In this talk, I will describe a lower bound on the Castelnuovo-Mumford regularity of I_G in terms of subgraphs of G. When G is a chordal bipartite graph, I will give an upper bound on the regularity also in terms of the properties of G. The upper bound relies on work of Ohsugi and Hibi.