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Singular TQFTs, foams and type D arc algebras
Published 22 Nov 2016 in math.GT, math.QA, and math.RT | (1611.07444v3)
Abstract: We combinatorially describe the $2$-category of singular cobordisms, called (rank one) foams, which governs the functorial version of Khovanov homology. As an application we topologically realize the type $\mathrm{D}$ arc algebra using this singular cobordism construction.
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