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Jin-Bing Zhang

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Preprint Aug 2026

Examples of nontrivial presilting objects in a singularity category

It was conjectured that no presilting objects exist in the singularity category of a finite-dimensional algebra over a field except the zero object. In this note, we give counterexamples to this conjecture for algebras over fields of positive characteristic.

Chang-Chang Xi, Jin-Bing Zhang · 0 citations

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