Browsing Mathematics Faculty Research and Publications by Subject "Deformation theory"

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On deformations of pasting diagrams

Yetter, David (2015-04-17)

We adapt the work of Power to describe general, not-necessarily composable, not-necessarily commutative 2-categorical pasting diagrams and their composable and commutative parts. We provide a deformation theory for pasting ...
On deformations of pasting diagrams, II

Shrestha, Tej Bahadur; Yetter, David (2015-04-17)

We continue the development of the infinitesimal deformation theory of pasting diagrams of k-linear categories begun in TAC, Vol 22, #2. In that article the standard result that all obstructions are cocycles was established ...