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 language | English (US) |
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Pages (from-to) | 319-333 |
Number of pages | 15 |
Journal | Michigan Mathematical Journal |
Volume | 64 |
Issue number | 2 |
DOIs | |
State | Published - Jun 1 2015 |
Bibliographical note
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