In this paper, we provide exact formulas for the regularity of powers of an almost complete intersection ideal I which is generated by a homogeneous d-sequence. As applications, when I is an almost complete intersection, taking the form of a (parity) binomial edge ideal of a connected graph, we can describe explicitly reg(I-t) for t >= 2. The only exception is when I is the parity binomial edge ideal of a graph which is obtained by adding an edge between two disjoint odd cycles.
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Univ Wisconsin Stout, Dept Math & Stat, Jarvis Hall Sci Wing, Menomonie, WI 54751 USAUniv Wisconsin Stout, Dept Math & Stat, Jarvis Hall Sci Wing, Menomonie, WI 54751 USA
Alilooee, Ali
Beyarslan, Selvi Kara
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Univ S Alabama, Dept Math & Stat, 411 Univ Blvd North, Mobile, AL 36688 USAUniv Wisconsin Stout, Dept Math & Stat, Jarvis Hall Sci Wing, Menomonie, WI 54751 USA
Beyarslan, Selvi Kara
Selvaraja, S.
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Inst Math Sci, CIT Campus, Chennai 600113, Tamil Nadu, IndiaUniv Wisconsin Stout, Dept Math & Stat, Jarvis Hall Sci Wing, Menomonie, WI 54751 USA