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math.DS2011★ 10 cited
Rigidity of certain solvable actions on the sphere
Masayuki Asaoka
An analog of the Baumslag-Solitar group BS(1,k) naturally acts on the sphere by conformal transformations. The action is not locally rigid in higher dimension, but exhibits a weak…
math.DS2011★ 1 cited
Local rigidity of homogeoenous actions of parabolic subgroups of rank-one Lie groups
Masayuki Asaoka
We show the local rigidity of the natural action of the Borel subgroup of SO_+(n,1) on a cocompact quotient of SO_+(n,1) for n>2.