Simplicial Complexes Which Are Minimal Cohen-Macaulay

Abstract

Let Δ be a (d - 1)-dimensional pure f -simplicial complex over vertex set [n]. In this paper, it is proved that Δ being minimal CM implies d ≥ 3 and n = 2d. It is also indicated that shellable condition on a pure simplicial complex Δ is identical with existence of a full series of CM subcomplexes of Δ.

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Wang, Y. and Wu, T. (2025) Simplicial Complexes Which Are Minimal Cohen-Macaulay. Journal of Applied Mathematics and Physics, 13, 1969-1981. doi: 10.4236/jamp.2025.135110.

Conflicts of Interest

The authors declare no conflicts of interest regarding the publication of this paper.

References

[1] Dao, H., Doolittle, J. and Lyle, J. (2020) Minimal Cohen—Macaulay Simplicial Complexes. SIAM Journal on Discrete Mathematics, 34,1602-1608. https://doi.org/10.1137/19m1275164
[2] Zheng, X. (2004) Resolutions of Facet Ideals. Communications in Algebra, 32, 2301-2324. https://doi.org/10.1081/agb-120037222
[3] Stanley, R. (1996) Combinatorics and Commutative Algebra, Progress in Mathematics. 2nd Edition, Vol. 41, Birkhäuser, 88-89.
[4] Eisenbud, D. (2004) Commutative Algebra with a View toward Algebraic Geometry. Springer Science, Business Media, Inc.
[5] Bruns, W. and Herzog, H.J. (1998) Cohen-Macaulay Rings. 2nd Edition,Cambridge University Press.https://doi.org/10.1017/cbo9780511608681
[6] Villarreal, R.H. (2015) Monomial Algebras. 2nd Edition, Taylor Francis Group, LLC.
[7] Miller, E. and Sturmfels, B. (2004) Combinatorial Commutative Algebra. Springer.
[8] Herzog, J. and Hibi, T. (2011) Monomial Ideals. GTM 260, Springer-Verlag.
[9] Munkres, J.R. (1984) Elements of Algebraic Topology. Addison-Wesley.
[10] Abbasi, G.Q., Ahmad, S., Anwar, I. and Baig, W.A. (2012) F-Ideals of Degree 2. Algebra Colloquium, 19, 921-926.https://doi.org/10.1142/s1005386712000788
[11] Mahmood, H., Anwar, I. and Zafar, M.K. (2014) A Construction of Cohen-Macaulay F-Graphs. Journal of Algebra and Its Applications, 13,Article ID: 1450012. https://doi.org/10.1142/s0219498814500121
[12] Guo, J. and Wu, T. (2015) On the (n,d)th f-Ideals. Journal of the Korean Mathematical Society, 52, 685-697.https://doi.org/10.4134/jkms.2015.52.4.685
[13] Mahmood, H., Anwar, I., Binyamin, M.A. and Yasmeen, S. (2017) On the Connectedness of F-Simplicial Complexes. Journal of Algebra and Its Applications, 16, Article ID: 1750017.https://doi.org/10.1142/s0219498817500177 DOI: 10.4236/jamp.2025.135110 1980 Journal of Applied Mathematics and PhysicsY. Y. Wang, T. S. Wu
[14] Liu, A.-M., Guo, J. and Wu, T.S. (2020) The Cohen-Macaulay Property of f-Simplicial Complexes.
[15] Guo, J., Wu, T. and Liu, Q. (2016) F-Ideals and f-Graphs. Communications in Algebra, 45, 3207-3220.https://doi.org/10.1080/00927872.2016.1236119
[16] Budd, S. and Van Tuyl, A. (2018) Newton Complementary Duals of Ideals. Canadian Mathematical Bulletin, 62, 231-241.https://doi.org/10.4153/s0008439518000024
[17] Björner, A. and Wachs, M.L. (1996) Shellable Nonpure Complexes and Posets. I. Transactions of the American Mathematical Society, 348,1299-1327. https://doi.org/10.1090/s0002-9947-96-01534-6
[18] CoCoATeam (2020) CoCoA: A System for Doing Computations in Commutative Algebra. http://cocoa.dima.unige.it

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