Non-trivial Hamiltonian fibrations via K-theory quantization

Symplectic Geometry Seminar - Egor Shelukhin - October 2, 2015

Egor Shelukhin
Member, School of Mathematics
October 2, 2015
We produce examples of non-trivial Hamiltonian fibrations that are not detected by previous methods (the characteristic classes of Reznikov for example), and improve theorems of Reznikov and Spacil on cohomology-surjectivity to the level of classifying spaces. Joint work with Yasha Savelyev.