Abstract
Let Δ be a simplicial complex on V = {x 1, . . . , x n }, with Stanley–Reisner ideal \({I_{\Delta}\subseteq R=k[x_1,\ldots, x_n]}\) . The goal of this paper is to investigate the class of artinian algebras \({A=A(\Delta,a_1,\ldots,a_n)= R/(I_{\Delta},x_1^{a_1},\ldots,x_n^{a_n})}\) , where each a i ≥ 2. By utilizing the technique of Macaulay’s inverse systems, we can explicitly describe the socle of A in terms of Δ. As a consequence, we determine the simplicial complexes, that we will call levelable, for which there exists a tuple (a 1, . . . , a n ) such that A(Δ, a 1, . . . , a n ) is a level algebra.
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Van Tuyl, A., Zanello, F. Simplicial complexes and Macaulay’s inverse systems. Math. Z. 265, 151–160 (2010). https://doi.org/10.1007/s00209-009-0507-x
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DOI: https://doi.org/10.1007/s00209-009-0507-x
Keywords
- Simplicial complex
- Macaulay’s inverse systems
- Stanley–Reisner ideal
- Monomial algebra
- Level algebra
- Socle-vector
- Edge ideal