Mathematics – Symplectic Geometry
Scientific paper
2006-03-10
Internat. J. Math. 19 (2008), no. 4, 369-385.
Mathematics
Symplectic Geometry
improved versions of the results; stylistic corrections; 15 pages
Scientific paper
10.1142/S0129167X0800473X
We explore a relationship between topological properties of orbits of
2-cycles in the symplectomorphism group Symp(M) and the existence of rational
curves in M. Under the absence of rational curves hypothesis, we show that
evaluation map vanishies on the second homotopy group and obtain a
Gottlieb-type vanishing theorem for toroidal cycles in Symp(M).
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