3 papers
math.DG2008
Differentiable Categories, gerbes and G-structures
Tsemo Aristide
The theories of strings and -branes have motivated the development of non Abelian cohomology techniques in differential geometry, on the purpose to find a geometric interpretati…
math.DG2005
Gerbes, 2-gerbes and symplectic fibrations
Tsemo Aristide
Let (F,u)\to P\to N be a symplectic fibration in math.SG/0503268 McDuff has defined a subgroup Ham^s(F,u) of the group of symplectic automorphisms of(F,u). She has shown that the c…
math.DG2005
Connective structure for principal gerbes
Tsemo Aristide
In this paper we generalize the notion of connective structure defined by Pierre Deligne to gerbes bounded by the automorphisms group of a principal bundle.