Sur un théorème de Castelnuovo
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID
526388
Author(s)
Blanc, Jeremy; Pan, Ivan; Vust, Thierry
Author(s) at UniBasel
Blanc, Jérémy
Year
2008
Title
Sur un théorème de Castelnuovo
Journal
Bulletin of the Brazilian Mathematical Society
Volume
39
Number
1
Pages / Article-Number
61-80
Keywords
Cremona transformations, birational transformations, fixed curves, curves of high genus, adjoint linear system, de Jonquieres transformations
Abstract
We continue the study of G. Castelnuovo on the group of birational
transformation of the complex plane that fix each point of a curve of genus
> 1 ; we use adjoint linear system of the curve as Castelnuovo does.
We prove that these groups are abelian, and that these are either finite, of
order 2 or 3, or conjuguate to a subgroup of the de Jonqui`eres group. We show
also that these results do not generalise to curves of genus 1.
Keywords. Cremona transformations, birational transformations, fixed curves,
curves of big genus, adjoint linear system, de Jonqui`eres transformations.
Publisher
Springer
ISSN/ISBN
1678-7544
edoc-URL
http://edoc.unibas.ch/dok/A5843081
Full Text on edoc
No
Digital Object Identifier DOI
0.1007/s00574-008-0072-7
ISI-Number
WOS:000254916200005
Document type (ISI)
Article
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