Moduli spaces of sheaves in mixed characteristic
Adrian Langer
Source: Duke Math. J. Volume 124, Number 3
(2004), 571-586.
Abstract
We prove a precise bound on the number of sections of a pure sheaf on a projective scheme. Our result strengthens the Le Potier-Simpson estimate and generalizes it to schemes defined over a field of any characteristic. This is used to construct the moduli space of semistable sheaves in mixed characteristic via Simpson's method.
First Page:
Show
Hide
Full-text: Access denied (no subscription
detected)
We're sorry, but we are unable to provide
you with the full text of this article because we are not able to identify
you as a subscriber.
If you have a personal subscription to
this journal, then please login. If you are already logged in, then you
may need to update your profile to register your subscription. Read more about accessing full-text
Links and Identifiers
Permanent link to this document: http://projecteuclid.org/euclid.dmj/1093984108
Digital Object Identifier: doi:10.1215/S0012-7094-04-12434-0
Mathematical Reviews number (MathSciNet): MR2085175
Zentralblatt MATH identifier: 02113314
References
A. Grothendieck and J. Dieudonné, Éléments de géométrie algébrique, IV: Étude locale des schémas et des morphismes de schémas, II, Inst. Hautes Études Sci. Publ. Math. 24 (1965).
Mathematical Reviews (MathSciNet): MR0199181
D. Huybrechts and M. Lehn, The Geometry of Moduli Spaces of Sheaves, Aspects Math. 31, Vieweg, Braunschweig, Germany, 1997.
Mathematical Reviews (MathSciNet): MR1450870
A. Langer, Semistable sheaves in positive characteristic, Ann. of Math. (2) 159 (2004), 251--276.
Mathematical Reviews (MathSciNet): MR2051393
JSTOR: links.jstor.org
--------, Moduli spaces and Castelnuovo-Mumford regularity of sheaves on surfaces, to appear, available at http://www.mimuw.edu.pl/~alan
M. Maruyama, ``Construction of moduli spaces of stable sheaves via Simpson's idea'' in Moduli of Vector Bundles (Sanda and Kyoto, Japan, 1994), Lecture Notes in Pure and Appl. Math. 179, Dekker, New York, 1996, 147--187.
Mathematical Reviews (MathSciNet): MR1397986
V. B. Mehta and A. Ramanathan, ``Homogeneous bundles in characteristic $p$'' in Algebraic Geometry: Open Problems (Ravello, Italy, 1982), Lecture Notes in Math. 997, Springer, Berlin, 1983, 315--320.
Mathematical Reviews (MathSciNet): MR0714755
Digital Object Identifier: doi:10.1007/BFb0061650
Zentralblatt MATH: 0532.14007
S. Ramanan and A. Ramanathan, Some remarks on the instability flag, Tohoku Math. J. (2) 36 (1984), 269--291.
Mathematical Reviews (MathSciNet): MR0742599
Digital Object Identifier: doi:10.2748/tmj/1178228852
Project Euclid: euclid.tmj/1178228852
Zentralblatt MATH: 0567.14027
C. S. Seshadri, Geometric reductivity over arbitrary base, Adv. in Math. 26 (1977), 225--274.
Mathematical Reviews (MathSciNet): MR0466154
Digital Object Identifier: doi:10.1016/0001-8708(77)90041-X
Zentralblatt MATH: 0371.14009
Duke Mathematical Journal