Vol. 231, No. 2, 2007

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An elementary, explicit, proof of the existence of Quot schemes of points

Trond Stølen Gustavsen, Dan Laksov and Roy Mikael Skjelnes

Vol. 231 (2007), No. 2, 401–415
Abstract

We give an easy and elementary construction of quotient schemes of modules of relatively finite rank under very general conditions. The construction provides a natural, explicit description of an affine covering of the quotient schemes, that is useful in many situation.

Keywords
Hilbert schemes, quotient schemes
Mathematical Subject Classification 2000
Primary: 14D20, 14A15
Milestones
Received: 28 January 2007
Revised: 16 May 2007
Accepted: 23 May 2007
Published: 1 June 2007
Authors
Trond Stølen Gustavsen
Department of Economics
BI Norwegian School of Management
N-0442 Oslo
Norway
Dan Laksov
Department of Mathematics
KTH
S-100 44 Stockholm
Sweden
Roy Mikael Skjelnes
Department of Mathematics
KTH
S-100 44 Stockholm
Sweden