The Blanchet-Khovanov algebras

Abstract

Blanchet introduced certain singular cobordisms to fix the functoriality of Khovanov homology. In this paper we introduce graded algebras consisting of such singular cobordisms a la Blanchet. As the main result we give algebraic versions of these algebras using the combinatorics of arc diagrams.

Locations

• arXiv (Cornell University) - View - PDF