Nonzero higher structure map conjecture for Dynkin-type ideals
Let be a local Gorenstein ring and let be a perfect ideal of Dynkin type. A structure map has strictly positive rank modulo the maximal ideal if its reduction modulo the maximal ideal of has positive rank. Dynkin structure-map conjecture. Some structure map , with and , has strictly positive rank modulo the maximal ideal of . The conjecture predicts nontrivial higher structure in every Dynkin-type resolution; the source discusses computed cases and the expected relevance to generic perfect ideals, but gives no resolution status.
References
Primary source
Lorenzo Guerrieri, Xianglong Ni and Jerzy Weyman, “Higher structure maps for free resolutions of length 3 and linkage”, arXiv:2208.05934 (2023).
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