| http://www.w3.org/ns/prov#value | - Cowling, De Mari, Koranyi and Reimann recently prove a Liouville-type result: they defined a generalized contact structure on homogeneous spaces of the type G/P, where G is a semisimple Lie group and P a minimal parabolic subgroup, and they show that the group of contact mappings coincides with G. In this paper, we consider the problem of characterizing the contact mappings on a natural class
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