|
|||||
|
|
Multigraded Betti numbers of simplicial forests |
|
| Authors: | Nursel Erey Sara Faridi |
| Institution: | Dalhousie University, Department of Mathematics, Halifax B3H 4R2, Canada |
| Abstract: | We prove that multigraded Betti numbers of a simplicial forest are always either 0 or 1. Moreover a nonzero multidegree appears exactly in one homological degree in the resolution. Our work generalizes work of Bouchat 2] on edge ideals of graph trees. |
| Keywords: | 05C05 05E40 05E45 13C10 13D02 13F55 |
| 本文献已被 ScienceDirect 等数据库收录！ | |