2 citations · 6 across the 4 of their papers we have counts for
14 papers · 1 filter
Sheaves of t-structures and valuative criteria for stable complexes
Dan Abramovich, Alexander Polishchuk
In this work more questions arise than answers given, for which of course we do not apologize. The core of this paper is concerned with the construction of a ``constant'' t-structu…
Computations with moduli of perverse point sheaves
Dan Abramovich, Jiun C. Chen
Given a birational modification of complex projective varieties with fiber dimension 1 and rational singularities, consider the main component of Bridgeland's moduli spac…
Flops, flips and perverse point sheaves on threefold stacks
Dan Abramovich, Jiun C. Chen
We consider two cases of birational transformations of Q-Gorenstein threefolds: the case of a terminal flop and the case of a Francia flip. In the first case we show that, if one r…
Canonical models and stable reduction for plurifibered varieties
Dan Abramovich
A cheap method for constructing canonical models and complete moduli for complex projective varieties with a structure called "rational plurifibration" is given. A result about sem…
Algebraic orbifold quantum products
Dan Abramovich, Tom Graber, Angelo Vistoli
The purpose of this note is to give an overview of our work on defining algebraic counterparts for W. Chen and Y. Ruan's Gromov-Witten Theory of orbifolds. This work will be descri…
Twisted bundles and admissible covers
Dan Abramovich, Alessio Corti, Angelo Vistoli
The cherry on top of this stacky paper is the following: for any g>1 we give a finite group G such that the moduli space of connected admissible G-covers of genus g is a smooth, fi…