3 papers
math.AG2026
Towards a characterization of toric hyperkähler varieties among symplectic singularities II
Yoshinori Namikawa
This is a continuation of arXiv: 2408.03012. We answer affirmatively Question 5.10 posed in the previous article. More precisely, let be a conical symplectic variety of d…
math.AG2026
Notes on Poisson deformations of symplectic varieties
Yoshinori Namikawa
In this article we give corrections and addendum to the article ``Flops and Poisson deformations of symplectic varieties, Publ. Res. Inst. Math. Sci. {\bf 44} (2008) 259 - 314''.
math.AG2025
Towards a characterization of toric hyperkähler varieties among symplectic singularities
Yoshinori Namikawa
Let be a conical symplectic variety of dimension which has a projective symplectic resolution. Assume that admits an effective Hamiltonian action of an -dimen…