101 citations · 1.4k across the 66 of their papers we have counts for
4 papers · 2 filters
Topological Strings from WZW Models
K. Landsteiner, W. Lerche, A. Sevrin
We show that the BRST structure of the topological string is encoded in the ``small'' superconformal algebra, enabling us to obtain, in a non-trivial way, the string theory f…
On the Lagrangian Realization of Non-Critical -Strings
Alex Deckmyn, Ruud Siebelink, Walter Troost +1
A large class of non-critical string theories with extended worldsheet gauge symmetry are described by two coupled, gauged Wess-Zumino-Witten Models. We give a detailed analysis of…
Superstrings from Hamiltonian Reduction
A. Boresch, K. Landsteiner, W. Lerche +1
In any string theory there is a hidden, twisted superconformal symmetry algebra, part of which is made up by the BRST current and the anti-ghost. We investigate how this algebra ca…
On the Landau-Ginzburg Realization of Topological Gravities
W. Lerche, A. Sevrin
We study the equivariant cohomology of a class of multi-field topological LG models, and find that such systems carry intrinsic information about -gravity. As a result, we can c…