activity
20142022
most citedFour-dimensional conical symplectic hypersurfaces

5 citations · 13 across the 7 of their papers we have counts for

collaborators

7 papers

math.AG2022

Moduli of -constellations and crepant resolutions I: the abelian case

Ryo Yamagishi

For a finite abelian subgroup , we study whether a given crepant resolution of the quotient variety is obtained as a moduli space of…

math.AG2022★ 2 cited

Moduli of -constellations and crepant resolutions II: the Craw-Ishii conjecture

Ryo Yamagishi

For any given finite subgroup , we show that every projective crepant resolution of the quotient variety is isomorphic to the moduli…

math.AG2019★ 5 cited

Four-dimensional conical symplectic hypersurfaces

Ryo Yamagishi

We show that every indecomposable conical symplectic hypersurface of dimension four is isomorphic to the known one, namely, the Slodowy slice which is transversal to the nilp…

math.AG2017★ 2 cited

Singularities of Fano varieties of lines on singular cubic fourfolds

Ryo Yamagishi

Let be a cubic fourfold that has only simple singularities and does not contain a plane. We prove that the Fano variety of lines on has the same analytic type of singularit…

math.AG2017★ 4 cited

Symplectic resolutions of the Hilbert squares of ADE surface singularities

Ryo Yamagishi

We study symplectic resolutions of the Hilbert scheme of two points on a surface with one ADE-singularity. We also characterize such singularities by central fibers of their symple…

math.AG2016

On smoothness of minimal models of quotient singularities by finite subgroups of

Ryo Yamagishi

We prove that a quotient singularity by a finite subgroup has a crepant resolution only if is generated by junior elements. This…

math.AG2014

Crepant resolutions of a Slodowy slice in a nilpotent orbit closure in

Ryo Yamagishi

One of our results of this article is that every (projective) crepant resolution of a Slodowy slice in a nilpotent orbit closure in can be obtained as…