Abstract:Let $X$ be a not necessarily smooth Fano variety and denote by \Ku(X) the non-trivial semi-orthogonal component. The Categorical Torelli problem asks if \Ku(X) determines the isomorphism class of $X$. In my talk, I will briefly talk about the history of this topic including the known results and popular strategies to prove these results. Then I will survey the recent advances for (wei...
AbstractWe will discuss new categorical interpretations of two distinct g-deformations of the rationalnumbers. The first one, introduced by Morier-Genoud and Ovsienko in a diferent context, enjoysfascinating combinatorial, topological, and algebraic properties. The second one is a natural partnelto the first, and is new. We obtain these deformations via boundary points of a compactification oft...