Algebraic implications of neighborhood hypergraphs and their transversal hypergraphs

被引:2
|
作者
Nasernejad, Mehrdad [1 ]
Qureshi, Ayesha Asloob [2 ,3 ]
机构
[1] Univ Artois, Lab Math Lens LML, Lens, France
[2] Sabanci Univ, Fac Engn & Nat Sci, Istanbul, Turkiye
[3] Sabanci Univ, Fac Engn & Nat Sci, Orta Mahalle, TR-34956 Tuzla, Istanbul, Turkiye
关键词
Closed neighborhood ideals; cycles; dominating ideals; normally torsion-freeness; strongly chordal graphs; FREE MONOMIAL IDEALS; COVER IDEALS; BLOWUP ALGEBRAS;
D O I
10.1080/00927872.2023.2300760
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper, we unfold balanced and totally balanced neighborhood hypergraphs to discover new classes of normally torsion-free monomial ideals. As a consequence, we establish that the closed neighborhood ideals and the dominating ideals of strongly chordal graphs are normally torsion-free. We discuss the stable sets of associated primes of the dominating ideals of cycles and characterize all the cycles with normally torsion-free dominating ideals.
引用
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页码:2328 / 2345
页数:18
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