On the full bosonic string from Minkowski space to Riemannian manifolds
arXiv:1611.08199 · doi:10.1016/j.jmaa.2017.02.010
Abstract
We study the action of the full bosonic string for the domain being two-dimensional Minkowski space and the target a Riemannian manifold. Its critical points couple the wave map equation to a scalar and a two-form potential. Besides investigating their basic features we establish existence results for the latter.