2 papers
math.DG2024
On the Z_2-valued index of elliptic odd symmetric operators on non-compact manifolds
Maxim Braverman, Ahmad Reza Haj Saeedi Sadegh
We investigate elliptic operators with a symmetry that forces their index to vanish. We study the secondary index, defined modulo 2. We examine Callias-type operators with this sym…
math.SG2024
Background Cohomology and Symplectic Reduction
Maxim Braverman
We consider a Hamiltonian action of a compact Lie group on a complete \ka manifold with a proper moment map. In a previous paper, we defined a regularized version of the Do…