Edge rings with q-linear resolutions

被引:1
|
作者
Mori, Kenta [1 ]
Ohsugi, Hidefumi [2 ]
Tsuchiya, Akiyoshi [3 ]
机构
[1] Kwansei Gakuin Univ, Grad Sch Sci & Technol, Dept Math Sci, Sanda, Hyogo 6691337, Japan
[2] Kwansei Gakuin Univ, Sch Sci, Dept Math Sci, Sanda, Hyogo 6691337, Japan
[3] Univ Tokyo, Grad Sch Math Sci, Meguro Ku, Tokyo 1538914, Japan
关键词
Finite graph; Edge ring; Linear resolution; delta-polynomial; TORIC IDEALS;
D O I
10.1016/j.jalgebra.2021.11.018
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In the present paper, we give a complete classification of connected simple graphs whose edge rings have a q-linear resolution with q >= 2. In particular, we show that the edge ring of a finite connected simple graph with a q-linear resolution, where q >= 3, is a hypersurface, which was conjectured by Hibi, Matsuda, and Tsuchiya. (c) 2021 The Author(s). Published by Elsevier Inc.
引用
收藏
页码:550 / 567
页数:18
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