On the knot Floer filtration of the concordance group
arXiv:1210.4193 · doi:10.1142/S0218216513500843
Abstract
The knot Floer complex together with the associated concordance invariant epsilon can be used to define a filtration on the smooth concordance group. We show that the indexing set of this filtration contains the natural numbers cross the integers as an ordered subset.
23 pages, 4 figures; v2: minor revisions throughout