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math.DG2006
Noncompact homogeneous Einstein manifolds attached to graded Lie algebras
Hiroshi Tamaru
In this paper, we study the nilradicals of parabolic subalgebras of semisimple Lie algebras and the natural one-dimensional solvable extensions of them. We investigate the structur…
math.DG2006
Lie groups locally isomorphic to generalized Heisenberg groups
Hiroshi Tamaru, Hisashi Yoshida
We classify connected Lie groups which are locally isomorphic to generalized Heisenberg groups. For a given generalized Heisenberg group , there is a one-to-one correspondence b…