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On the geometry of bifurcation currents for quadratic rational maps

Published online by Cambridge University Press:  14 March 2014

FRANÇOIS BERTELOOT
Affiliation:
Université Paul Sabatier MIG, Institut de Mathématiques de Toulouse, 31062 Toulouse Cedex 9, France email berteloo@picard.ups-tlse.fr
THOMAS GAUTHIER
Affiliation:
Université de Picardie Jules Verne, LAMFA UMR-CNRS 7352, 80039 Amiens Cedex 1, France email thomas.gauthier@u-picardie.fr Stony Brook University, Institute for Mathematical Sciences, Stony Brook, NY 11794, USA

Abstract

We describe the behaviour at infinity of the bifurcation current in the moduli space of quadratic rational maps. To this purpose, we extend it to some closed, positive $(1,1)$-current on a two-dimensional complex projective space and then compute the Lelong numbers and the self-intersection of the extended current.

Type
Research Article
Copyright
© Cambridge University Press, 2014 

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