Hecke modifications, wonderful compactifications and moduli of principal bundles
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 5, Tome 12 (2013) no. 2, pp. 309-367
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In this paper we obtain parametrizations of the moduli space of principal bundles over a compact Riemann surface using spaces of Hecke modifications in several cases. We begin with a discussion of Hecke modifications for principal bundles and give constructions of “universal” Hecke modifications of a fixed bundle of fixed type. This is followed by an overview of the construction of the “wonderful,” or De Concini–Procesi, compactification of a semi-simple algebraic group of adjoint type. The compactification plays an important role in the deformation theory used in constructing the parametrizations. A general outline to construct parametrizations is given and verifications for specific structure groups are carried out.
@article{ASNSP_2013_5_12_2_309_0,
author = {Wong, Michael Lennox},
title = {Hecke modifications, wonderful compactifications and moduli of principal bundles},
journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
pages = {309--367},
year = {2013},
publisher = {Scuola Normale Superiore, Pisa},
volume = {Ser. 5, 12},
number = {2},
mrnumber = {3114007},
zbl = {1292.14011},
language = {en},
url = {http://geodesic.mathdoc.fr/item/ASNSP_2013_5_12_2_309_0/}
}
TY - JOUR AU - Wong, Michael Lennox TI - Hecke modifications, wonderful compactifications and moduli of principal bundles JO - Annali della Scuola Normale Superiore di Pisa - Classe di Scienze PY - 2013 SP - 309 EP - 367 VL - 12 IS - 2 PB - Scuola Normale Superiore, Pisa UR - http://geodesic.mathdoc.fr/item/ASNSP_2013_5_12_2_309_0/ LA - en ID - ASNSP_2013_5_12_2_309_0 ER -
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Wong, Michael Lennox. Hecke modifications, wonderful compactifications and moduli of principal bundles. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 5, Tome 12 (2013) no. 2, pp. 309-367. http://geodesic.mathdoc.fr/item/ASNSP_2013_5_12_2_309_0/