Generic curves and non-coprime Catalans

Given a plane curve singularity C, one can define an algebraic variety called the compactified Jacobian of C. We introduce a class of “generic” curves, and describe the homology of the corresponding compactified Jacobians in terms of combinatorics of non-coprime rational q,t-Catalan numbers. All notions will be introduced in the talk, this is a joint work with Mikhail Mazin and Alexei Oblomkov.

---

Date published: Wednesday, April 3, 2024