Published online by Cambridge University Press: 17 April 2020
We give a generators-and-relations description of differential graded algebras recently introduced by Ozsváth and Szabó for the computation of knot Floer homology. We also compute the homology of these algebras and determine when they are formal.
A.M. was supported by an NSF MSPRF fellowship, grant number DMS-1502686. M.M. was supported by the NSF FRG grant DMS-1563615. M.W. was supported by the NSF FRG grant DMS-1563615.