Projective-dimension conjecture for t-connected ideals of trees

Let TT be a tree, let tt be a positive integer, and let Jt(T)J_t(T) denote the tt-connected ideal of TT. Let bight(Jt(T))\operatorname{bight}(J_t(T)) denote the big height of this ideal. Projective-dimension conjecture for t-connected ideals. One has

pd(R/Jt(T))=bight(Jt(T)).\operatorname{pd}(R/J_t(T))=\operatorname{bight}(J_t(T)).

This conjecture is proposed alongside the regularity formula for tt-connected ideals because these ideals may provide a more suitable generalization of edge ideals for homological invariants; the supplied text gives no resolution.

Sources & referencesView supporting material

Primary source

Kanoy Kumar Das, Amit Roy and Kamalesh Saha, “On the path ideals of chordal graphs”, arXiv:2405.15897 (2024).

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