Cartwright–Strumfels local-cohomology invariance conjecture

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Let AA be a polynomial ring, let I⊆AI\subseteq A be a Zm\mathbb{Z}^m-graded Cartwright–Strumfels ideal, let gin⁡(I)\operatorname{gin}(I) be its Zm\mathbb{Z}^m-graded generic initial ideal, and let m\mathfrak m be the relevant homogeneous maximal ideal. Cartwright–Strumfels invariance conjecture. For every r∈Nr\in\mathbb N and every a∈Zma\in\mathbb Z^m,

dim⁡KHmr(A/I)a=dim⁡KHmr(A/gin⁡(I))a.\dim_K H_{\mathfrak m}^r(A/I)_a=\dim_K H_{\mathfrak m}^r(A/\operatorname{gin}(I))_a.

The source attributes the assertion to work comparing Cartwright–Strumfels ideals with their generic initial ideals, but does not state whether it is open or resolved.

References

Primary source

Priya Das, “Recent results on homological properties of binomial edge ideal of graphs”, arXiv:2209.01201 (2023).

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