4 papers
math.AG2005
Remarks on Type III Unprojection
Stavros Argyrios Papadakis
Type III unprojection plays a very important role in the birational geometry of Fano threefolds. It was first introduced by A. Corti on his calculations of Fano threefolds of genus…
math.AG2005
Type II Unprojection
Stavros Argyrios Papadakis
Answering a question of M. Reid, we define and prove the Gorensteiness of the type II unprojection.
math.AG2001
Kustin-Miller unprojection with complexes
Stavros Papadakis
A main ingredient for Kustin-Miller unprojection, as developed in (S. Papadakis and M. Reid, Kustin-Miller unprojection without complexes, math.AG/0011094), is the module Hom_R(I,…
math.AG2000
Kustin--Miller unprojection without complexes
Stavros Papadakis, Miles Reid
Gorenstein projection plays a key role in birational geometry; the typical example is the linear projection of a del Pezzo surface of degree d to one of degree d-1, but variations…