There are infinitely many 0-concordance classes of 2-knots
0-Concordance of 2-knots
In this paper we investigate the 0-concordance classes of 2-knots in an equivalence relation that is related to understanding smooth structures on 4-manifolds.
Using rochlin s invariant, and invariants arising from heegaard-floer homology
, we will prove that there are infinitely many 0-concordance classes of 2-knots.
