Proper Hamiltonian momentum maps admit a natural integral affine stratification, and the cohomology classes of reduced symplectic forms vary linearly on each stratum, extending Duistermaat-Heckman to singular values.
Title resolution pending
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
fields
math.SG 1years
2025 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
Constructibility of momentum maps and linear variation for singular symplectic reduced spaces
Proper Hamiltonian momentum maps admit a natural integral affine stratification, and the cohomology classes of reduced symplectic forms vary linearly on each stratum, extending Duistermaat-Heckman to singular values.