Contemporary Mathematics 1994; 287 pp; softcover Volume: 161 ISBN10: 0821851705 ISBN13: 9780821851708 List Price: US$43 Member Price: US$34.40 Order Code: CONM/161
 This volume contains the proceedings of the Workshop on Topology held at the Pontifícia Universidade Católica in Rio de Janeiro in January 1992. Bringing together about one hundred mathematicians from Brazil and around the world, the workshop covered a variety of topics in differential and algebraic topology, including group actions, foliations, lowdimensional topology, and connections to differential geometry. The main concentration was on foliation theory, but there was a lively exchange on other current topics in topology. The volume contains an excellent list of open problems in foliation research, prepared with the participation of some of the top world experts in this area. Also presented here are two surveys on group actionsfinite group actions and rigidity theory for Anosov actionsas well as an elementary survey of Thurston's geometric topology in dimensions 2 and 3 that would be accessible to advanced undergraduates and graduate students. Readership Researchers and graduate students in topology and related fields. Table of Contents  Foliations
 J. Cantwell and L. Conlon  Topological obstructions to smoothing proper foliations
 O. CalvoAndrade  Deformations of holomorphic foliations
 S. Hurder and Y. Mitsumatsu  Transverse Euler classes of foliations on nonatomic foliation cycles
 N. M. d. Santos  Foliated cohomology and characteristic classes
 R. Langevin  A list of questions about foliations
 De Rham theory and singularities
 A. G. Aleksandrov  Duality and De Rham complex on singular varieties
 J.P. Brasselet  De Rham theorems for singular varieties
 M. A. S. Ruas  On the equisingularity of families of corank \(1\) generic germs
 Two surveys on actions
 A. Adem  Cohomology and actions of finite groups
 S. Hurder  A survey of rigidity theory for Anosov actions
 Lowdimensional topology
 N. C. Saldanha  An introduction to geometric topology: Geometric structures on manifolds of dimensions \(2\) and \(3\)
 D. Randall  On \(4\)dimensional bundle theories
 D. Randall and P. A. Schweitzer S. J.  On foliations, concordance spaces, and the Smale conjectures
 J. N. Ballesteros and M. C. R. Fuster  Generic \(1\)parameter families of closed space curves
 Characteristic classes
 J. L. Dupont and F. W. Kamber  Dependence relations for CheegerChernSimons invariants of locally symmetric spaces
 N. E. Barufatti  Obstructions to immersions of projective Stiefel manifolds
