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Generalized Kahler geometry and gerbes
C. M. Hull, U. Lindström, M. Roček +2
We introduce and study the notion of a biholomorphic gerbe with connection. The biholomorphic gerbe provides a natural geometrical framework for generalized Kahler geometry in a ma…
Euclidean Supersymmetry, Twisting and Topological Sigma Models
C. M. Hull, U. Lindstrom, L. Melo dos Santos +2
We discuss two dimensional N-extended supersymmetry in Euclidean signature and its R-symmetry. For N=2, the R-symmetry is SO(2)\times SO(1,1), so that only an A-twist is possible.…
Topological Sigma Models with H-Flux
C. M. Hull, U. Lindstrom, L. Melo dos Santos +2
We investigate the topological theory obtained by twisting the N=(2,2) supersymmetric nonlinear sigma model with target a bihermitian space with torsion. For the special case in wh…