A transformation principle for covers of P-1

Authors
Volklein, H
Citation
H. Volklein, A transformation principle for covers of P-1, J REIN MATH, 534, 2001, pp. 155-168
Citations number
19
Categorie Soggetti
Mathematics
Journal title
JOURNAL FUR DIE REINE UND ANGEWANDTE MATHEMATIK
ISSN journal
00754102 → ACNP
Volume
534
Year of publication
2001
Pages
155 - 168
Database
ISI
SICI code
0075-4102(20010531)534:<155:ATPFCO>2.0.ZU;2-V
Abstract
We present an explicit operation between Galois covers of P-1 (with differe nt Galois groups) which under some mild conditions preserves the field of m oduli. We work in the context of covers with given linear representation of the Galois group.