14 citations · 23 across the 5 of their papers we have counts for
5 papers
On geometry of Fano threefold hypersurfaces
Hamid Ahmadinezhad, Ivan Cheltsov, Jihun Park
We prove that a quasi-smooth Fano threefold hypersurface is birationally rigid if and only if it has Fano index one.
On a conjecture of Tian
Hamid Abban, Ivan Cheltsov, Josef Schicho
We study Tian's -invariant in comparison with the -invariant for pairs consisting of a smooth surface of degree in the projective three-dimensional spac…
Non-rigid quartic 3-folds
Hamid Abban, Anne-Sophie Kaloghiros
Let be a terminal factorial quartic -fold. If is non-singular, is \emph{birationally rigid}, i.e. the classical MMP on any terminal -…
On conjugacy classes of the Klein simple group in Cremona group
Hamid Abban
We consider countably many three dimensional -del Pezzo surface fibrations over . Conjecturally they are all irrational except two famil…
On non-rigid del Pezzo fibrations of low degree
Hamid Abban
We consider bundles over and construct hypersurfaces of these bundles which form a degree 2 del Pezzo fibration over as a Mori f…