Tutorial on Tom and Jerry: The two smoothings of the anticanonical cone over P(1; 2; 3)
Artikel i vetenskaplig tidskrift, 2021
This is a first introduction to unprojection methods, and more specifically to Tom and Jerry unprojections. These two harmless tricks deserve to be better known, since they answer many practical questions about constructing codimension 4 Gorenstein subschemes. In particular, we discuss here the two smoothing components of the anticanonical cone over P.1; 2; 3/.
Deformations
Codimension 4 Gorenstein ring
Unprojection
Pfaffians
Författare
Gavin Brown
The University of Warwick
Miles Reid
The University of Warwick
Jan Stevens
Göteborgs universitet
Chalmers, Matematiska vetenskaper, Algebra och geometri
EMS Surveys in Mathematical Sciences
23082151 (ISSN) 2308216X (eISSN)
Vol. 8 1 25-38Ämneskategorier
Etnologi
Geometri
Kulturstudier
DOI
10.4171/EMSS/43