1211.0487 (Anton Alekseev et al.)

Current algebra functors and extensions    [PDF]

Anton Alekseev, Pavol Severa, Cornelia Vizman

We show how the fundamental cocycles on current Lie algebras and the Lie algebra of symmetries for the sigma model are obtained via the current algebra functors. We present current group extensions integrating some of these current Lie algebra extensions.

View original: http://arxiv.org/abs/1211.0487