Algebraic Topology Poznań 1989: Proceedings of a Conference held in Poznań, Poland, June 22–27, 1989

As part of the scientific activity in connection with the 70th birthday of the Adam Mickiewicz University in Poznan, an international conference on algebraic topology was held. In the resulting proceedings volume, the emphasis is on substantial survey papers, some presented at the conference, some written subsequently. Some applications of shifted subgroups in transformation groups....Pages 1-19 Equivariant finiteness obstruction and its geometric applications - A survey....Pages 20-37 On conic spaces....Pages 38-58 Computations of stable pseudoisotopy spaces for aspherical manifolds....Pages 59-74 The fundamental groups of algebraic varieties....Pages 75-82 Invariants of graphs and their applications to knot theory....Pages 83-97 Morse theory of closed 1-forms....Pages 98-110 Morava K-theories: A survey....Pages 111-138 Examples of lack of rigidity in crystallographic groups....Pages 139-145 Sur la Topologie des Bras Articules....Pages 146-159 Semicontractible link maps and their suspensions....Pages 160-169 The KO -assembly map and positive scalar curvature....Pages 170-182 Equivariant splittings associated with smooth toral actions....Pages 183-192 Lefschetz numbers of C *-complexes....Pages 193-206 On the homotopy category of Moore spaces and an old result of Barratt....Pages 207-230 An additive basis for the cohomology of real Grassmannians....Pages 231-234 On the topology of the space of reachable symmetric linear systems....Pages 235-253 Homotopy ring spaces and their matrix rings....Pages 254-272 Homotopy colimits on E-I-categories....Pages 273-294 On bordism rings with principal torsion ideal....Pages 295-309 "Localization and the sullivan fixed point conjecture"....Pages 310-324 Characteristic numbers and group actions....Pages 325-336 Remarks on one fixed point A 5 -actions on homology spheres....Pages 337-364 A note on the mod 2 cohomology of SL (Z)....Pages 365-370 Characteristic classes and 2—modular representations for some sporadic simple groups — II....Pages 371-381 The abelianization of the theta group in low genus....Pages 382-388 Annotation As part of the scientific activity in connection with the 70th birthday of the Adam Mickiewicz University in Poznan, an international conference on algebraic topology was held. In the resulting proceedings volume, the emphasis is on substantial survey papers, some presented at the conference, some written subsequently As part of the scientific activity in connection with the 70th birthday of the Adam Mickiewicz University in Poznan, an international conference on algebraic topology was held. This work emphasizes on substantial survey papers, some presented at the conference, some written subsequently.