Sigma models with non-commuting complex structures and extended supersymmetry
arXiv:1005.1376
Abstract
We discuss additional supersymmetries for N = (2, 2) supersymmetric non-linear sigma models described by left and right semichiral superfields.
11 pages. Talk presented by U.L. at "30th Winter School on Geometry and Physics" Srni, Czech Republic January 2010.