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math.GT2020
A Combinatorial Description of the Knot Concordance Invariant Epsilon
Subhankar Dey, Hakan Doga
In this paper, we give a combinatorial description of the concordance invariant defined by Hom in \cite{hom2011knot}, prove some properties of this invariant using gr…
math.GT2020
A note on a Geography problem in knot Floer homology
Subhankar Dey
We prove that knot Floer homology of a certain class of knots is non-trivial in next-to-top Alexander grading. This gives a partial affirmative answer to a question posed by Baldwi…