56 citations · 140 across the 5 of their papers we have counts for
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Polyakov-Wiegmann Formula and Multiplicative Gerbes
Krzysztof Gawedzki, Konrad Waldorf
An unambiguous definition of Feynman amplitudes in the Wess-Zumino-Witten sigma model and the Chern-Simon gauge theory with a general Lie group is determined by a certain geometric…
Bi-branes: Target Space Geometry for World Sheet topological Defects
Jürgen Fuchs, Christoph Schweigert, Konrad Waldorf
We establish that the relevant geometric data for the target space description of world sheet topological defects are submanifolds - which we call bi-branes - in the product M1 x M…
WZW orientifolds and finite group cohomology
Krzysztof Gawedzki, Rafal R. Suszek, Konrad Waldorf
The simplest orientifolds of the WZW models are obtained by gauging a Z_2 symmetry group generated by a combined involution of the target Lie group G and of the worldsheet. The act…