### **CANCELED** Knots with all prime power branched covers bounding rational homology balls

GAUGE-TOPOLOGY-SYMPLECTIC

March 13, 2020 3:30 pm*Rice University*

Given a slice knot K and a prime power n, the n-th cyclic branched cover \Sigma_n(K) bounds a rational homology ball (Casson-Gordon). Even if one restricts to n=2, this gives a powerful sliceness...

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