Local rings of embedding codepth at most 3 have only trivial semidualizing complexes
Nasseh, Saeed · Sather-Wagstaff, Sean
Original · EN
We prove that a local ring R of embedding codepth at most 3 has at most two semidualizing complexes up to shift-isomorphism, namely, R itself and a dualizing R-complex if one exists.
English translation
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