Dubrovin's conjecture for IG(2,6)
classification
🧮 math.AG
math.RAmath.SG
keywords
cohomologyquantumconjecturedubrovinanothercaseconsiderformulation
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We show that the big quantum cohomology of the symplectic isotropic Grassmanian $IG(2,6)$ is generically semisimple, whereas its small quantum cohomology is known to be non-semisimple. This gives yet another case where Dubrovin's conjecture holds and stresses the need to consider the big quantum cohomology in its formulation.
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