Herzog-Srinivasan Taylor multiplicity bound conjecture

Let VV be a finite set, let R=k[V]R=\Bbbk[V] be a standard graded polynomial ring, and let II be a monomial ideal of height cc. Let e(R/I)e(R/I) denote the Hilbert-Samuel multiplicity. If T\mathbb T_\bullet is the Taylor resolution of R/IR/I, let TlT_l be the largest twist in homological degree ll; equivalently,

Tl=max{deglcm(fs1,,fsl):1s1<<slm}.T_l=\max\{\deg\operatorname{lcm}(f_{s_1},\ldots,f_{s_l}):1\leq s_1<\cdots<s_l\leq m\}.

Herzog-Srinivasan's Taylor multiplicity bound conjecture.

e(R/I)T1T2Tcc!.e(R/I)\leq\frac{T_1T_2\cdots T_c}{c!}.

The paper studies this weaker Taylor bound for quadratic monomial ideals and states that it is proved there for all such ideals; the supplied text does not establish the claim for arbitrary monomial ideals.

Sources & referencesView supporting material

Primary source

Manoj Kummini, “Multiplicity Bounds for Quadratic Monomial Ideals”, arXiv:0707.1311 (2007).

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