The symplectic mapping class group of double-struck CP2#ndouble-struck CP2with n ≤ 4

Jun Li, Tian Jun Li, Weiwei Wu

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

In this paper, we prove that the Torelli part of the symplectomorphism groups of the n-point (n ≤ 4) blow-ups of the projective plane is trivial. Consequently, we determine the symplectic mapping class group. It is generated by reflections on Kω-spherical class with zero ω area.

Original languageEnglish (US)
Pages (from-to)319-333
Number of pages15
JournalMichigan Mathematical Journal
Volume64
Issue number2
DOIs
StatePublished - Jun 1 2015

Bibliographical note

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© 2015, University of Michigan. All rights reserved.

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