University of Toronto's Symplectic Geometry Seminar

February 13, 2006, 2:10pm
Bahen 6183

Olguta Buse

Indiana University Purdue University Indianapolis

Higher Whitehead products in symplectomorphism groups


I will discuss topological properties of symplectomorphism groups of symplectic ruled surfaces $\Sigma_g \times S^2$. I will overview former results of Gromov, Abreu and McDuff, and then present a geometrical method, based on computing equivariant Gromov Witten invariants, to detect nontrivial Whitehead products in such groups.