Topology seminar (previous semesters)

• Current semester
• SS2009
• WS2008-2009
• SS2008
• WS2007-2008
• SS2007
• WS2006-2007
• SS2006
• WS2005-2006
• SS2005
• WS2004-2005
• SS2004
• WS2003-2004

SS2009

• 21 July 2009,
  STEFAN BAUER (Bielefeld): Eigentliche Abbildungen zwischen Fréchet-Räumen.
  
  
• 14 July 2009,
  PETER TEICHNER (University of California, MPIM Bonn): Field theory and cohomology.
  
  
• 7 July 2009,
  JEFFREY GIANSIRACUSA (Oxford): Framed 2-discs, formality, and handlebodies.
  
  
• 30 June 2009,
  JOHN R. KLEIN (Wayne State University): Periodicity and duality.
  
  
• 23 June 2009,
  RICK JARDINE (University of Western Ontario): Pointed torsors and Galois groups.
  
  
• 16 June 2009,
  RAINER VOGT (Osnabrück): The classifying space functor as a derived left adjoint and applications.
  
  
• 26 May 2009,
  GERALD GAUDENS (Bonn): Structural properties of the cohomology of spaces.
  
  
• 19 May 2009,
  MATTHIAS KRECK (HIM Bonn): Exotic spheres and the Kervaire invariant.
  
  
• 12 May 2009,
  OSCAR RANDAL-WILLIAMS (Oxford): Monoids of moduli spaces of manifolds.
  
  
• 5 May 2009,
  MARKUS BANAGL (Heidelberg): Singuläre Räume, Poincaré-Komplexe und Stringtheorie.
  
  
• 21 April 2009,
  JÉRÔME SCHERER (UA Barcelona/MPIM): Model approximations and homological algebra.
  
  
• 14 April 2009,
  IAN HAMBLETON (McMaster, MPIM): The surgery assembly map and KO-homology.
  
  

WS2008-2009

• 3 February 2009,
  HAAKON BERGSAKER (Oslo): The multiplicative structure of the topological cyclic homology of the sphere spectrum.
  
  
• 27 January 2009,
  ARNE WEINER (Bonn): Morita theory of stable model categories via naive ring spectra.
  
  
• 20 January 2009,
  ANDRES ANGEL (Bonn): Cobordism of orbifolds.
  
  
• 13 January 2009,
  ERIK PEDERSEN (Copenhagen): Assembly maps.
  
  
• 6 January 2009,
  HANNO VON BODECKER (Bochum): On the f-invariant - an index theoretical approach.
  
  
• 16 December 2008,
  ULRICH BUNKE (Regensburg): Axiomatics and uniqueness for smooth cohomology theories.
  
  
• 9 December 2008,
  BRITA NUCINKIS (Southampton): Cohomological finiteness conditions in soluble groups.
  
  
• 2 December 2008,
  CHRISTOPHE CAZANAVE (Polytechnique/Paris 13): Homotopy theory of Atiyah-Hitchin schemes.
  
  
• 25 November 2008,
  CHRISTIAN BÄR (Potsdam): Fiber integration for Cheeger-Simons characters.
  
  
• 18 November 2008,
  MARCO SCHLICHTING (Baton Rouge/MPI Bonn): The Mayer-Vietoris principle for higher Grothendieck-Witt groups of schemes.
  
  
• 11 November 2008,
  DANIEL MÜLLNER (Bonn): Construction of chiral manifolds.
  
  
• 4 November 2008,
  JOHANNES EBERT (Bonn): Index theory and Madsen-Tillmann spectra.
  
  
• 28 October 2008,
  OLIVER BAUES (Karlsruhe/Bonn): Aspherical homogeneous manifolds.
  
  
• 21 October 2008,
  JOHN HARPER (Notre Dame/EPFL): Bar constructions and Quillen homology of modules over operads.
  
  
• 14 October 2008,
  GEREON QUICK (Münster): Etale Homotopietheorie.
  
  

SS2008

WS2007-2008

• 5 February 2008,
  MAX KAROUBI (Jussieu): Twisted K-theory, old and new.
  
  
• 29 January 2008,
  CHRISTIAN AUSONI (Bonn): On rational algebraic K-theory.
  
  
• 22 January 2008,
  JULIA SINGER (Bonn): Commutative multiplications on Moore spectra.
  
  
• 15 January 2008,
  DAVID ROSENTHAL (St. John's University): On the algebraic K-theory of groups with finite asymptotic dimension.
  
  
• 18 December 2007,
  JEAN FASEL (EPFL Lausanne): Euler classes of algebraic vector bundles.
  
  
• 11 December 2007,
  CLARK BARWICK (University of Oslo): Operator categories for homotopy coherent algebra.
  
  
• 4 December 2007,
  ANDREW RANICKI (University of Edinburgh): A composition formula for manifold structures.
  
  
• 27 November 2007,
  IAN HAMBLETON (McMaster University): Aspherical 2-complexes and 4-manifolds
  
  
• 20 November 2007,
  NAFAA CHBILI (Monastir University / MPIM Bonn): On equivariant Khovanov homology.
  
  
• 6 November 2007,
  TIBOR MACKO (Universität Münster): On fake lens spaces.
  
  
• 30 October 2007,
  CLARA LÖH (Universität Münster): Isomorphisms in l¹-homology.
  
  
• 23 October 2007,
  MICHAEL POLYAK (Technion, Haifa / MPIM Bonn): Lines intersecting knots and finite type knot invariants.
  
  
• 16 October 2007,
  GEORG BIEDERMANN (MPIM Bonn): Homotopy nilpotent groups.
  
  

SS2007

• 10 July 2007,
  RALPH KAUFMANN (University of Connecticut / MPIM): Graphen, Operaden und deren Algebren.
  
  
• 3 July 2007,
  DAVID BARNES (University of Sheffield): An Algebraic Model for Rational O(2)-Equivariant Spectra.
  
  
• 26 June 2007,
  STEFFEN SAGAVE (University of Oslo): Higher multiplicative structures in the homology of differential graded algebras.
  
  
• 19 June 2007,
  JOHANNES EBERT (University of Oxford): On the homology of the Deligne-Mumford space.
  
  
• 12 June 2007,
  JOACHIM GRUNEWALD (Universität Bonn): Operations on Nil-terms.
  
  
• 5 June 2007,
  ANDREAS HEIDER (Universität Bonn): One or two results from Morita theory of stable model categories.
  
  
• 22 May 2007,
  FRANÇOIS-XAVIER DEHON (Université de Nice): Unstable algebras, generalized cohomology theories, and realizability problems.
  
  
• 15 May 2007,
  BIRGIT RICHTER (Universität Hamburg): K-Theorie bipermutativer Kategorien und virtuelle 2-Vektorbündel.
  
  
• 8 May 2007,
  VOLKER PUPPE (Universität Konstanz): Involutionen auf 3-Mannigfaltigkeiten und binäre, selbstduale Codes
  
  
• 24 April 2007,
  GREGORY ARONE (University of Virginia, MPIM): Chain rule in calculus of functors.
  
  
• 17 April 2007,
  PASCAL LAMBRECHTS (Université Catholique de Louvain): The rational homology of spaces of smooth embeddings from two calculi of functors viewpoint.
  
  
• 10 April 2007,
  DIARMUID CROWLEY (Universität Bonn): Automorphisms of odd dimensional manifolds and l_2q+1(Z[π]).
  
  
• 3 April 2007,
  WOLFGANG LÜCK (Universität Münster): The Farrell-Jones Conjecture and its applications.
  
  

WS2006-2007

• 6 February 2007,
  GEOFFREY POWELL (Université Paris 13): The Singer functors revisited
  
  
• 30 January 2007,
  HOSSEIN ABBASPOUR (MPIM): String Topology, from a symplectic point of view
  
  
• 23 January 2007,
  CARSTEN SCHULTZ (TU Berlin): Kohomologieringe komplexer Unterraumarrangements
  
  
• 16 January 2007,
  MATTHIAS KRECK (Universität Bonn): Äquivariante Kohomologie und Poincaré Dualität
  
  
• 9 January 2007,
  HANS-WERNER HENN (Université de Strasbourg): K(2)-local homotopy theory at the prime 2
  
  
• 19 December 2006,
  MARKUS BANAGL (Universität Heildelberg): Jüngste Entwicklungen in der Schnitthomologie
  
  
• 12 December 2006,
  THOMAS M. FIORE (University of Chicago): Jacobians of Riemann Surfaces with Parametrized Boundary
  
  
• 5 December 2006,
  OLIVER RÖNDIGS (Universität Osnabrück): The motivic J-homomorphism
  
  
• 28 November 2006,
  CONSTANZE ROITZHEIM (Universität Bonn): Starrheit der K-lokalen stabilen Homotopiekategorie
  
  
• 21 November 2006,
  NASKO KARAMANOV (MPIM): On K(2) local homotopy theory and Hopkins Picard Group Pic_2
  
  
• 14 November 2006,
  AURÉLIEN DJAMENT (Université Paris 13): Grassmannsche Funktorkategorien und Krullfiltrierung
  
  
• 7 November 2006,
  MARTIN MARKL (Academy of Sciences of the Czech Republic): Natural differential operators and graph complexes
  
  
• 31 October 2006,
  JENNIFER SCHULTENS (University of California at Davis, MPIM): Stabilisierung und Amalgamation von Heegaardzerlegungen
  
  
• 24 October 2006,
  BEN C. WALTER (University of Purdue, MPIM): Lie coalgebras of graphs
  
  

SS2006

• 11 July 2006,
  KEIVAN MALLAHI-KARAI (Universität Bonn): Relative growth of subgroups in arithmetic groups
  
  
• 4 July 2006,
  JUAN WANG (Universität Bonn): An unstable splitting of the free loop space of a suspension
  
  
• 27 June 2006,
  GAEL COLLINET (Université de Strasbourg): On the homology of the group G₂(Z[1/2])
  
  
• 20 June 2006,
  JOHN R. KLEIN (Wayne State University): Strings, Poincare duality and homotopy invariance
  
  
• 13 June 2006,
  FRITZ GRUNEWALD (Universität Düsseldorf): Linear representations of the automorphism group of a free group and of the mapping class group
  
  
• 30 May 2006,
  GERD LAURES (Universität Bochum): Bordism-like theories
  
  
• 23 May 2006,
  BERNARDO URIBE (Universitad de los Andes): Orbifold string topology
  
  
• 16 May 2006,
  ANDREAS THOM (Universität Göttingen): L² Betti numbers and cohomology for von Neumann algebras
  
  
• 9 May 2006,
  CHRISTOPH LAMM: Dedekind-Summen und Knotentheorie
  
  
• 2 May 2006,
  URS SCHREIBER (Universität Hamburg): On the String 2-Group
  
  
• 25 April 2006,
  MIGUEL XICOTENCATL (Cinestav, Mexico - Universität Bonn): Computations and operations in orbifold string topology
  
  
• 18 April 2006,
  JEFFREY GIANSIRACUSA (Oxford University): Mapping class groups of 4-manifolds
  
  

WS2005-2006

• 7 February 2006,
  RICHARD WEIDMANN (Universität Frankfurt): Faltungen und Nielsen-Äquivalenz
  
  
• 31 January 2006,
  CHRISTINE VESPA (University Paris 13): The functor category Fquad associated to quadratic spaces over F₂
  
  
• 24 January 2006,
  IMMA GALVEZ CARILLO (London Metropolitan University): Witten genus and quasimodular forms
  
  
• 17 January 2006,
  TIBOR MACKO (Universität Münster): Automorphism spaces of projective spaces and lens spaces
  
  
• 10 January 2006,
  BENJAMIN HIMPEL (Universität Bonn) : The spectral flow of the odd signature operator coupled to a path of connections
  
  
• 13 December 2005,
  ANDRE HENRIQUEZ (Universität Münster): A Lie algebra for the String group
  
  
• 6 December 2005,
  RAINER VOGT (Universität Osnabrück): Interchange, E_n-spaces, and applications
  
  
• 29 November 2005,
  JOACHIM GRUNEWALD (Universität Münster): The behavior of Nil-Groups under Localization
  
  
• 22 November 2005,
  ARNE WEINER (Universität Bonn) : Symmetric Spectra and Morava K-theories
  
  
• 15 November 2005,
  MATTHIAS KÜNZER (RWTH Aachen): Heller triangulated categories
  
  
• 8 November 2005,
  DAVE BENSON (University of Aberdeen) : Cohomology of groups and duality
  
  
• 25 October 2005,
  JENS HORNBOSTEL (Universität Regensburg) : Beta-elements and divided congruences
  
  
• 18 October 2005,
  RYAN BUDNEY (MIPM) : Topology of spaces of knots in dimension 3
  
  

SS2005

• 12 July 2005,
  DAVID J. GREEN (Universität Wuppertal) : Computing cohomology rings of finite groups
  
  
• 5 July 2005,
  CONSTANTIN TELEMAN (University of Cambridge) : 2D Semi-simple Topological Field Theories
  
  
• 28 June 2005,
  MIGUEL XICOTENCATL (Cinestav, Mexico - Universität Bonn) : Orbifold String Topology
  
  
• 21 June 2005,
  PAUL GOERSS (Northwestern University) : Filtrations of the moduli space of formal groups and the stable homotopy groups of spheres
  
  
• 7 June 2005,
  ROLAND FRIEDRICH (MPIM, Bonn) : From moduli spaces of Riemann surfaces to random paths
  
  
• 31 May 2005,
  GEORG BIEDERMANN (University of Western Ontario) : Homotopy theory of functors
  
  
• 24 May 2005,
  TEIMURAZ PIRASHVILI (Razmadze Mathematical Institute / Bielefeld / MPIM Bonn) : Comparison between Hochschild, Shukla and MacLane cohomology
  
  
• 10 May 2005,
  HANS-WERNER HENN (Université Strasbourg, MPIM) : Picard groups in K(1)-local and K(2)-local homotopy theory
  
  
• 3 May 2005,
  DAVID CHATAUR (Université de Lille 1) : On a mod-p analogue of the Bousfield-Peterson-Smith spectral sequence
  
  
• 26 April 2005,
  NORA GANTER (Uni. of Illinois at Urbana-Champaign) : Orbifold Geschlechter und K(n)-lokale Spektren
  
  
• 19 April 2005,
  FERNANDO MURO (MPIM Bonn) : The localization theorem in cohomology of categories
  
  
• 12 April 2005,
  JEAN-PHILIPPE JOURDAN (Université de Lille 1) : Homotopy invariance of configuration spaces
  
  
• 29 March 2005,
  MARK BEHRENS (MIT) : Buildings, Elliptic curves, and the stable homotopy groups of spheres
  
  

WS2004-2005

• 9. February 2005,
  FERIT DENIZ (Universität Köln) : Lie Gruppen vom topologischen Standpunkt
  
  
• 1. February 2005,
  FRIDOLIN ROTH (Universität Bonn) : Lusternik-Schnirelman-Category and Euclidean configuration spaces
  
  
• 24. January 2005,
  ELKE MARKERT (Notre Dame) : Ein Spektrum für ko aus euklidischen Quantum Feldtheorien
  
  
• 18. January 2005,
  MARTIN LANGER (Universität Bonn) : Realizability of modules over Tate cohomology
  
  
• 11. January 2005,
  THOMAS BARTSCH (Universität Giessen) : Konfigurationsräume, Transfer, und Lösungen nichtlinearer partieller Differentialgleichungen
  
  
• 21. December 2004,
  BALAZS VISY (Universität Bonn) : Graph complexes
  
  
• 14. December 2004,
  MARCO SCHMIDT (Universität Münster) : Simplicial Volume and L²-Betti Numbers
  
  
• 7. December 2004,
  DMITRI PANOV (MPIM Bonn) : Polyhedral Kaehler Manifolds
  
  
• 30. November 2004,
  MARTIN LUSTIG (Université d'Aix-Marseille III/MPIM Bonn) : Teichmüller-Geodätische im Culler-Vogtmann-Raum via Faltungen von train tracks
  
  
• 23. November 2004,
  BJÖRN SCHUSTER (Universität Wuppertal) : Morava K-theory of classifying spaces
  
  
• 16. November 2004,
  HENNING KRAUSE (Universität Padderborn) : Smashing localizations and the algebraic telescope conjecture
  
  
• 9. November 2004,
  ERWANN LANNEAU (MPIM Bonn) : Moduli spaces of quadratic differentials
  
  
• 2. November 2004,
  MARKUS SZYMIK (Universität Bochum) : Symmetries of 4-manifolds
  
  
• 26. October 2004,
  OLIVER ROENDIGS (Universität Bielefeld) : Modules over motivic cohomology
  
  
• 19. October 2004,
  SEMEN SADETOV (Don State Technical University) : The symplectic structure of Beresin-Kirillov-Kostant-Souriau on the orbits of the coadjoint representation is the differntial of a rational 1-form
  
  
• 12. October 2004,
  DAN BURGHELEA (Ohio-State/MPIM Bonn) : An invariant for non simply connected manifolds
  
  

SS2004

• 27. Juli 2004,
  FRANÇOIS-XAVIER DEHON (Nice): Cohomology of mapping spaces and division functors : an overview
  
  
• 20. Juli 2004,
  MICHAEL FARBER (Durham/MPI): Topology of configuration spaces and problems of robotics
  
  
• 13. Juli 2004,
  WALTER NEUMANN: 3-Manifolds and singularities of splice type
  
  
• 6. Juli 2004,
  CHRISTINE LESCOP (UJF Grenoble): Vassiliev invariants and Chern-Simons-Theory
  
  
• 29. Juni 2004,
  JOCHEN ABHAU (Bonn): Berechnungen der Homologie von Abbildungsklassengruppen und Modulräumen Riemmannscher Flächen
  
  
• 15. Juni 2004,
  ALEXANDER NENASHEV (Bielefeld): On the Witt groups of projective bundles: geometric reasoning
  
  
• 8. Juni 2004,
  GEORG BIEDERMANN (Bonn): Interpolation categories of homology theories
  
  
• 25. May 2004,
  BERNARDO URIBE (U. Michigan/z.ZT. MPI): Differential characters on orbifolds and string connections
  
  
• 18. May 2004,
  MAMUKA JIBLADZE (MPI Bonn): Secondary derived functors and the E₃ term of the Adams spectral sequence
  
  
• 11. May 2004,
  JOHN ROGNES (Oslo): A homological approach to topological cyclic theory
  
  
• 4. May 2004,
  CARL-FRIEDRICH BÖDIGHEIMER (Bonn): Goodwillie derivative of the identity functor
  
  
• 27. April 2004,
  OTMAR VENJAKOB (Heidelberg): Charakteristische Elemente in nicht-kommutativer Iwasawa-Theorie
  
  

WS2003-2004

• 3. February 2004,
  JAN SCHRÖER (Leeds): Irreduzible Komponenten von Modulvarietäten
  
  
• 27. January 2004,
  STEFFEN SAGAVE (Bonn): Algebraische K-Theorie von Modellkategorien
  
  
• 20. January 2004,
  GUNTHER KRAUSS (Bonn): Symmetrische Produkte von lokalen Koeffizientensystemen
  
  
• 13. January 2004,
  BENOIT FRESSE (Lille): The bar construction of an E-infinity algebra
  
  
• 16. December 2003,
  JULIA SINGER (Münster): Analogien zwischen Knotentheorie und Iwasawatheorie
  
  
• 9. December 2003,
  LUC MENICHI (Angers): Batalin-Vilkovisky algebras and cyclic cohomology of Hopf algebras
  
  
• 2. December 2003,
  JOHANNES EBERT (Bonn): On the moduli space of abelian differentials
  
  
• 25. November 2003,
  FRANK HERRLICH (Karlsruhe): Origamikurven in Modulräumen
  
  
• 18. November 2003,
  SADOK KALLEL (Lille): Rational maps, Configurations and String Topology
  
  
• 11. November 2003,
  C. B. THOMAS (Cambridge/MPI): Contact structures on Fake Lens Spaces
  
  
• 4. November 2003,
  GERALD GAUDENS (Bonn): Results on N. Kuhn's realization conjectures
  
  
• 28. October 2003,
  MICHAEL JOACHIM (Bonn): On the Gromov-Lawson-Rosenberg Conjecture for (Z/2)^2
  
  
• 21. October 2003,
  TORSTEN LANGER: Das Pontrjagin-Produkt in der Homologie des Abbildungsraumes vom Torus in die 3-Sphäre