### Instantons and lattices of smooth 4-manifolds with boundary

GAUGE-TOPOLOGY-SYMPLECTIC

March 29, 2019 3:30 pm*Simons Center*

Abstract: Given a 3-manifold Y, what are the possible definite intersection forms of smooth 4-manifolds with boundary Y? Donaldson's theorem says that if Y is the 3-sphere, then all such...

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