26 citations · 122 across the 13 of their papers we have counts for
13 papers
Geometric realizations of birational transformations via -actions
Gianluca Occhetta, Eleonora A. Romano, Luis E. Solá Conde +1
In this paper we study varieties admitting torus actions as geometric realizations of birational transformations. We present an explicit construction of these geometric realization…
Small modifications of Mori dream spaces arising from -actions
Gianluca Occhetta, Eleonora A. Romano, Luis E. Solá Conde +1
We link small modifications of projective varieties with a -action to their GIT quotients. Namely, using flips with centers in closures of Białynicki-Birula cells, w…
High rank torus actions on contact manifolds
Gianluca Occhetta, Eleonora A. Romano, Luis E. Solá Conde +1
We prove LeBrun--Salamon conjecture in the following situation: if is a contact Fano manifold of dimension whose group of automorphisms is reductive of rank $\geq \max(2…
4-dimensional symplectic contractions
Marco Andreatta, Jaroslaw A. Wisniewski
Local symplectic contractions are resolutions of singularities which admit symplectic forms. Four dimensional symplectic contractions are (relative) Mori Dream Spaces. In particula…
Rigidity of Mori cone for Fano manifolds
Jaroslaw A. Wisniewski
Mori cone is rigid in smooth connected families of Fano manifolds.
On the Kummer construction
Marco Andreatta, Jaroslaw A. Wisniewski
We discuss a generalization of Kummer construction which, on the base of an integral representation of a finite group and local resolution of its quotient, produces a higher dimens…