On the Orbit Structures of SU (n)-Actions on Manifolds of the Type of Euclidean, Spherical or Projective Spaces.
On the Rank of Abelian Groups Acting Freely on (Sn)k.
On the Symmetries of the Fake C P2.
On the topological classification of pseudofree group actions on 4-manifolds. I.
On the topology of spherically symmetric space-times
Spherically symmetric space-times have attained considerable attention ever since the early beginnings of the theory of general relativity. In fact, they have appeared already in the papers of K. Schwarzschild [12] and W. De Sitter [5] which were published in 1916 and 1917 respectively soon after Einstein's epoch-making work [7] in 1915. The present survey is concerned mainly with recent results pertainig to the toplogy of spherically symmetric space-times. Definition. By space-time a connected...
One fixed point actions on low-dimensional spheres.
Orbit Structure of certain -actions on solid torus
In this paper we describe the orbit structure of -actions of on the solid torus having and as the only compact orbits, and as singular set.