3 papers
math.GT2026
On the nonexistence of good involutions of symplectic quandles
Yasuhito Nakajima, Kentaro Yamaguchi
We investigate the necessary and sufficient condition for the existence of good involutions of symplectic quandles, which are defined on free -modules with an antisymmetric bili…
math.SG2025
Delzant type theorem for torus-equivariantly embedded toric hypersurfaces
Kentaro Yamaguchi
In the previous work, we study the moment polytope of the closure of the complex subtorus orbit in a symplectic toric manifold associated to an affine subspace when the closure is…
math.SG2024
Submanifolds with corners in Delzant polytopes associated to affine subspaces
Kentaro Yamaguchi
We studied the closure of a complex subtorus given from an affine subspace in in a toric manifold. If the closure of the complex subtorus is…