Relative symplectic cohomology and Maurer–Cartan deformation conjecture
Relative symplectic cohomology and Maurer–Cartan deformation conjecture
Let be the positively monotone symplectic manifold and the normal-crossings divisor considered in the paper, let , and let be the skeleton of . Let be the coefficient ring, the ground field, and the Maurer–Cartan element used to deform symplectic cohomology. Write for relative symplectic cohomology.
Relative symplectic cohomology conjecture. There is an isomorphism of graded -modules
This generalizes the theorem proved under Hypothesis A, namely the condition that all divisor weights satisfy . It is known in the cases covered by that theorem and is conjectured more generally, including examples where both sides vanish and the case of with a hypersurface.
Sources & referencesView supporting material
Primary source
Matthew Strom Borman, Mohamed El Alami and Nick Sheridan, “Maurer–Cartan elements in symplectic cohomology from compactifications”, arXiv:2408.09221 (2025).
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