33 citations · 315 across the 87 of their papers we have counts for
96 papers
Algebraic entropy of birational automorphism groups in families of hyper-Kähler manifolds
Francesco Antonio Denisi, Keiji Oguiso, Claudio Onorati +2
In this short note, we study the behavior of the algebraic entropy of birational automorphism groups in families of projective hyper-Kähler manifolds.
A rational surface with discrete and non-finitely generated automorphism group
Tien-Cuong Dinh, Keiji Oguiso, Xun Yu +1
We construct a smooth complex projective rational surface whose automorphism group is discrete and not finitely generated. It is obtained by blowing up a point on a branch curve of…
On algebraic dynamics of birational automorphisms of Calabi-Yau manifolds and the universal Coxeter groups
Keiji Oguiso
This is a continuation of our study of algebraic dymanics of birational automorphisms of complex Calabi-Yau manifolds in the view of primitivity and the existence of Zariski dense…
Sixteen generators of the automorphism group of the Fermat quartic surface
JongHae Keum, Keiji Oguiso, Xun Yu
It has been a long standing open problem to find generators of the automorphism group of the complex Fermat quartic K3 surface; in fact, even an explicit number of generators has n…
Obstructions for codimension one multiple fibers of Lagrangian and Calabi--Yau fibrations
Yoon-Joo Kim, Keiji Oguiso, Evgeny Shinder
We prove that compact hyper-Kähler manifolds with a Lagrangian fibration over a projective space have no multiple fibers in codimension one. This has several consequences for the s…
Essential dimensions of polarized endomorphisms of abelian varieties
Yujie Luo, Keiji Oguiso, De-Qi Zhang
Let be a polarized endomorphism of an abelian variety . Kollár and Zhuang asked whether the essential dimension equals . We provide counter…