On the Deformation Space of Clifford–Klein Forms of Heisenberg Groups
1 Department of Mathematics, Faculty of Sciences of Sfax, Route de Soukra, 3038, Sfax, Tunisia
1 Department of Mathematics, Faculty of Sciences of Bizerte, Bizerte, Tunisia
1 Department of Mathematics, Tokyo Institute of Technology, Tokyo, Japan
Correspondence: Correspondence to be sent to: Ali.Baklouti{at}fss.rnu.tn
Let H be an arbitrary closed connected subgroup of the connected, simply connected Heisenberg G = H2n+1. We present in this paper a complete description of the deformation space
and the moduli space
of adiscontinuous abelian subgroup
of G for the homogeneous space G/H. The topological features of deformations, namely the topological stability, the rigidity, and the local rigidity are also studied.