10 citations · 43 across the 17 of their papers we have counts for
17 papers
On the automorphism group of parabolic structures and closed aspherical manifolds
Oliver Baues, Yoshinobu Kamishima
In this expository paper we discuss several properties on closed aspherical parabolic ${\sfG}$-manifolds . These are manifolds , where is a smooth contractible manifo…
A note on vanishing of equivariant differentiable cohomology of proper actions and application to CR-automorphism and conformal groups
Oliver Baues, Yoshinobu Kamishima
We establish that for any proper action of a Lie group on a manifold the associated equivariant differentiable cohomology groups with coefficients in modules of $\mathcal{C}^\infty…
Locally Homogeneous Aspherical Sasaki Manifolds
Oliver Baues, Yoshinobu Kamishima
Let be a contractible homogeneous Sasaki manifold. A compact locally homogeneous aspherical Sasaki manifold is by definition a quotient of by a di…
Quaternionic contact structure with integrable complementary distribution
Yoshinobu Kamishima
We study positive definite quaternionic contact -manifolds (-manifold for short). Just like the -structure contains the class of Sasaki manifolds, the -structur…
Homogeneous Sasaki and Vaisman manifolds of unimodular Lie groups
Dmitry Alekseevsky, Keizo Hasegawa, Yoshinobu Kamishima
A Vaisman manifold is a special kind of locally conformally Kaehler manifold, which is closely related to a Sasaki manifold. In this paper we show a basic structure theorem of simp…
Isometry groups with radical, and aspherical Riemannian manifolds with large symmetry I
Oliver Baues, Yoshinobu Kamishima
Every compact aspherical Riemannian manifold admits a canonical series of orbibundle structures with infrasolv fibers which is called its infrasolv tower. The tower arises from the…