CR-manifolds, harmonic maps and stability. (Q5954166)

In this paper, the authors study harmonic maps between strongly pseudoconvex CR-manifolds. In the first half of this paper, they work on tension fields of harmonic maps, and prove, for example, that any \((\varphi, J)\)-holomorphic map from a contact metric manifold \(M(\varphi, \xi, \eta, g)\) into a Kähler manifold \(N(J, g')\) is harmonic. In the rest of the paper, they give some results on instability of harmonic maps.