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The \(h\)-vectors of the edge rings of a special family of graphs. (English) Zbl 1540.13060

Summary: The \(h\)-vectors of homogeneous rings are one of the most important invariants that often reflect ring-theoretic properties. On the other hand, there are a few examples of edge rings of graphs whose \(h\)-vectors are explicitly computed. In this paper, we compute the \(h\)-vector of a special family of graphs, by using the technique of initial ideals and the associated simplicial complex.

MSC:

13P10 Gröbner bases; other bases for ideals and modules (e.g., Janet and border bases)
05E40 Combinatorial aspects of commutative algebra
13A70 General commutative ring theory and combinatorics (zero-divisor graphs, annihilating-ideal graphs, etc.)
13F55 Commutative rings defined by monomial ideals; Stanley-Reisner face rings; simplicial complexes

References:

[1] Borzì, A.; D’Alì, A., Graded algebras with cyclotomic Hilbert series, J. Pure Appl. Algebra, 225, 106764 (2021) · Zbl 1469.13035 · doi:10.1016/j.jpaa.2021.106764
[2] Bruns, W.; Herzog, J., Cohen-Macaulay Rings, revised ed (1998), Cambridge: Cambridge University Press, Cambridge · Zbl 0909.13005
[3] Goto, S.; Takahashi, R.; Taniguchi, N., Almost Gorenstein rings – towards a theory of higher dimension, J. Pure Appl. Algebra, 219, 2666-2712 (2015) · Zbl 1319.13017 · doi:10.1016/j.jpaa.2014.09.022
[4] Herzog, J.; Hibi, T.; Ohsugi, H., Binomial Ideals. Graduate Texts in Mathematics, 279 (2018), Cham: Springer, Cham · Zbl 1403.13004
[5] Higashitani, A., Almost Gorenstein homogeneous rings and their \(h\)-vectors, J. Algebra, 456, 190-206 (2016) · Zbl 1401.13073 · doi:10.1016/j.jalgebra.2016.02.023
[6] Higashitani, A.; Matsushita, K., Levelness versus almost Gorensteinness of edge rings of complete multipartite graphs, Commun. Algebra, 50, 6, 2637-2652 (2022) · Zbl 1495.13035 · doi:10.1080/00927872.2021.2015362
[7] Higashitani, A.; Yanagawa, K., Non-level semi-standard graded Cohen-Macaulay domain with \(h\)-vector \(####\), J. Pure Appl. Algebra, 222, 191-201 (2018) · Zbl 1428.13038
[8] Kálmán, T.; Postnikov, A., Root polytopes, Root polytopes, Tutte polynomials, and a duality theorem for bipartite graphs, Proc. London Math. Soc., 114, 3, 561-588 (2017) · Zbl 1378.05096 · doi:10.1112/plms.12015
[9] Matsuoka, N.; Murai, S., Uniformly Cohen-Macaulay simplicial complexes, J. Algebra, 455, 14-31 (2016) · Zbl 1342.13031 · doi:10.1016/j.jalgebra.2016.02.005
[10] Ohsugi, H.; Hibi, T., Normal polytopes arising from finite graphs, J. Algebra, 207, 409-426 (1998) · Zbl 0926.52017 · doi:10.1006/jabr.1998.7476
[11] Ohsugi, H.; Hibi, T., Compressed polytopes, initial ideals and complete multipartite graphs, Illinois J. Math., 44, 2, 391-406 (2000) · Zbl 0943.13016 · doi:10.1215/ijm/1255984847
[12] Simis, A.; Vasconcelos, W. V.; Villarreal, R. H., The integral closure of subrings associated to graphs, J. Algebra, 199, 281-289 (1998) · Zbl 0902.13004 · doi:10.1006/jabr.1997.7171
[13] Stanley, R. P., Hilbert functions of graded algebras, Adv. Math, 28, 57-83 (1978) · Zbl 0384.13012 · doi:10.1016/0001-8708(78)90045-2
[14] Villarreal, R. H., Normality of subrings generated by square free monomials, J. Pure Appl. Algebra, 113, 91-106 (1996) · Zbl 0862.13008 · doi:10.1016/0022-4049(95)00145-X
[15] Villarreal, R. H., Monomial Algebras. Monographs and Research Notes in Mathematics (2015), Boca Raton, FL: CRC Press, Boca Raton, FL · Zbl 1325.13004
[16] Yanagawa, K., Castelnuovo’s Lemma and \(h\)-vectors of Cohen-Macaulay homogeneous domains, J. Pure Appl. Algebra, 105, 107-116 (1995) · Zbl 0842.13012 · doi:10.1016/0022-4049(94)00139-1
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