Longitude Floer homology and the Whitehead double
Eaman Eftekhary
Abstract
We define the longitude Floer homology of a knot K in S3 and show that it is a topological invariant of K. Some basic properties of these homology groups are derived. In particular, we show that they distinguish the genus of K. We also make explicit computations for the (2,2n+1) torus knots. Finally a correspondence between the longitude Floer homology of K and the Ozsvath-Szabo Floer homology of its Whitehead double KL is obtained.
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