Dao and Takahashi's infinite-radius conjecture for resolving subcategories
Dao and Takahashi's infinite-radius conjecture for resolving subcategories
Let be a Cohen--Macaulay local ring, and let be a resolving subcategory of . A module is maximal Cohen--Macaulay if its depth equals ; call it non-MCM when it is not maximal Cohen--Macaulay. Dao and Takahashi's conjecture. If contains a non-MCM module , then has infinite radius. This conjecture extends Dao and Takahashi's theorem that a resolving subcategory containing a module of positive finite projective dimension has infinite radius; the general Cohen--Macaulay case remains open.
Sources & referencesView supporting material
Primary source
Yuki Mifune, “On the finiteness of radii of resolving subcategories”, arXiv:2308.05296 (2023).
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