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math.QA2005★ 21 cited
Frobenius algebras and planar open string topological field theories
Aaron D. Lauda
Motivated by the Moore-Segal axioms for an open-closed topological field theory, we consider planar open string topological field theories. We rigorously define a category 2Thick w…
math.QA2003★ 230 cited
Higher-Dimensional Algebra V: 2-Groups
John C. Baez, Aaron D. Lauda
A 2-group is a "categorified" version of a group, in which the underlying set G has been replaced by a category and the multiplication map has been replaced by a functor. Various v…