On 3-Manifolds with Finite Solvable Fundamental Groups.
On 4-Manifolds with Singular Torus Actions.
On a character of the automorphism group of a compact com-plex manifold.
On conformally flat Lorentz parabolic manifolds
We introduce conformally flat Fefferman-Lorentz manifold of parabolic type as a special class of Lorentz parabolic manifolds. It is a smooth (2n+2)-manifold locally modeled on (Û(n+1, 1), S 2n+1,1). As the terminology suggests, when a Fefferman-Lorentz manifold M is conformally flat, M is a Fefferman-Lorentz manifold of parabolic type. We shall discuss which compact manifolds occur as a conformally flat Fefferman-Lorentz manifold of parabolic type.
On Embeddings of Proper Smooth G-Manifolds.
On finite groups acting on acyclic low-dimensional manifolds
We consider finite groups which admit a faithful, smooth action on an acyclic manifold of dimension three, four or five (e.g. Euclidean space). Our first main result states that a finite group acting on an acyclic 3- or 4-manifold is isomorphic to a subgroup of the orthogonal group O(3) or O(4), respectively. The analogous statement remains open in dimension five (where it is not true for arbitrary continuous actions, however). We prove that the only finite nonabelian simple groups admitting a smooth...
On finite groups of isometries of handlebodies in arbitrary dimensions and finite extensions of Schottky groups
It is known that the order of a finite group of diffeomorphisms of a 3-dimensional handlebody of genus g > 1 is bounded by the linear polynomial 12(g-1), and that the order of a finite group of diffeomorphisms of a 4-dimensional handlebody (or equivalently, of its boundary 3-manifold), faithful on the fundamental group, is bounded by a quadratic polynomial in g (but not by a linear one). In the present paper we prove a generalization for handlebodies of arbitrary dimension d, uniformizing handlebodies...
On for dimensional s-cobordisms, II.
On orbit dimensions under a simultaneous Lie group action on copies of a manifold.
On periodic homeomorphisms of spheres.
On Poincaré 3-Complexes with Binary Polyhedral Fundamental Group.
On s-cobordisms of metacyclic prism manifolds.
On the actions of SO(3) on lens space II
On the actions of SO(3) on lens spaces
On the equivariant homotopy of spheres [Book]
On the finiteness obstruction of certain periodic groups.
On the form of principal torus-bundles over toruses
On the genus of represenattion spheres.
On the homotopy groups of some equivariant automorphism groups of spheres
On the homotopy theory of equivariant automorphism groups.