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Results tagged with heegaard-floer-homology
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user 27433
For questions about Heegaard-Floer homology (as introduced by Ozsváth-Szabó in 2003) and its uses in 3- and 4-dimensional topology.
2
votes
0
answers
104
views
Ozsvath-Szabo orientation convention for Seifert fibred spaces
I am confused by the orientation convention that Ozsvath and Szabo use in On Heegaard Floer homology and Seifert Fibered Surgeries and would appreciate if someone clarifies this for me. On page 15 the …
- 1,000
16
votes
1
answer
797
views
Can infinitely many alternating knots have the same Alexander polynomial?
There exist many constructions of infinite families of knots with the same Alexander polynomial. However, alternating knots seem very special. While there are also many result on restricting the form …
- 1,000
3
votes
0
answers
181
views
Definition of the dual spider number and the formula for the first chern class of the triangle
In the process of trying to understand various maps in Heegaard Floer homology I got stuck on the definition of the dual spider number, which, it seems to me, has a combinatorial definition directly f …
- 1,000