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Seifert forms and concordance
Geometry and Topology
If a knot K has Seifert matrix V_K and has a prime power cyclic branched cover that is not a homology sphere, then there is an infinite family of non-concordant knots having Seifert matrix V_K.doi:10.2140/gt.2002.6.403 fatcat:b7x6da6ienchzgln7zsjmhfwmu