Constant angle surfaces in the Lorentzian Heisenberg group
arXiv:1702.05790
Abstract
In this paper, we define and, then, we characterize constant angle spacelike and timelike surfaces in the three-dimensional Heisenberg group, equipped with a 1-parameter family of Lorentzian metrics. In particular, we give an explicit local parametrization of these surfaces and we produce some examples.
13 pages, 8 figures