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floer homology 1geometric uniruledness 1hamiltonian diffeomorphisms 1periodic orbits 1quantum steenrod operations 1symplectic topology 1

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20242026
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Equivariant Cerf theory and perturbative Casson invariants

Shaoyun Bai, Boyu Zhang

We develop an equivariant Cerf theory for Morse functions on finite-dimensional manifolds with group actions, and adapt the technique to the infinite-dimensional setting to study t…