2 papers
math.AG2026
NCCRs of cones over del Pezzo surfaces
Anya Nordskova, Michel Van den Bergh
Non-commutative crepant resolutions (NCCRs) are non-commutative versions of classical crepant resolutions in algebraic geometry. For 3-dimensional terminal Gorenstein singularities…
math.CT2026
New examples of non-unique enhancements for triangulated categories
Alice Rizzardo, Julie Symons, Michel Van den Bergh
We present a general procedure for constructing triangulated categories, linear over a field, with distinct enhancements. Some of our examples can be equipped with a (non-degenerat…