Dimensions of Betti Cones on Edge Ideals

Dimensions of Betti Cones on Edge Ideals
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DOI:
10.1016/j.jpaa.2022.107054
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发表时间:
2021-04
影响因子:
0.8
通讯作者:
David Carey
David Carey
中科院分区:
数学2区
文献类型:
--
作者:
David Carey

文献摘要

相似文献

Boij-Söderberg理论将多项式环上分次模的Betti图视为Q-向量空间中的向量,并研究这些向量生成的锥(称为“Betti锥”)。本文的研究对象是由边理想生成的Betti锥。本文给出并证明了这类锥的维数公式,以及由特定高度的边理想生成的子锥的维数公式。
Boij-Söderberg Theory views the Betti diagrams of graded modules over polynomial rings as vectors in a Q-vector space, and studies the cone that these vectors generate (called a ‘Betti Cone’). The objects of study in this paper are the Betti cones generated by edge ideals. This paper presents and proves a formula for the dimensions of these cones, and for the subcones generated by edge ideals of specific heights.