Top-level heading

Applications of K-moduli of quasimaps to K-moduli conjecture for Calabi-Yau fibrations over curves

Categoria
Altro (categoria non censita)
Categoria non censita
Seminario di Geometria
Data e ora inizio evento
Data e ora fine evento
Aula
Altro (Aula esterna al Dipartimento)
Sede

Dipartimento di Matematica, Università di Roma Tor Vergata

Aula esterna
Aula D'Antoni
Speaker
Masafumi Hattori (University of Nottingham)
Odaka proposed the K-moduli conjecture in 2010, predicting the existence of a moduli space of K-polystable objects with an ample CM line bundle. While this conjecture has been solved in the Fano case, it remains open in general. Recent developments of Fine, Dervan-Sektnan and Ortu have highlighted the relevance of the existence of cscK metrics and K-stability for $(X,\epsilon A+L)$ for sufficiently small $\epsilon$, where $f\colon (X,A)\to (B,L)$ is a fibration. According to their works, such K-stability is closely related to some K-stability of fibers and the bases. Especially in the Calabi-Yau fibration over curve case, uniform K-stability in this context (uniform adiabatic K-stability) coincides with the log twisted K-stability on the base. In this talk, we will regard the base curve as a quasimap and introduce the notion of K-moduli of quasimaps. By using this framework, we address the K-moduli conjecture for Calabi-Yau fibrations over curves whose generic fibers are either Abelian varieties or HyperKahler manifolds. This is a joint work arXiv:2504.21519 with Kenta Hashizume.
Contatti/Organizzatori
guidomaria.lido@gmail.com