(1) Department of Mathematics, Ochanomizu University, 2-1-1 Otsuka Bunkyo-ku, Tokyo, 112-8610, Japan;(2) Department of Mathematics, Katholieke Universiteit Leuven, Celestijnenlaan 200B, 3001 Leuven, Belgium
Abstract:
We provide a new characterization of invariant minimal unit vector fields on Lie groups and use it to construct some new examples. In particular, we determine all these vector fields on three-dimensional Lie groups.