Bjørn Jahren

Professor Emeritus - Department of Mathematics
Image of Bjørn Jahren
Norwegian version of this page
Phone +47-22855908
Room 1227
Username
Visiting address Moltke Moes vei 35 Niels Henrik Abels hus 0851 OSLO
Tags: Mathematics, Geometry and topology

Publications

  • Jahren, Bjørn & Sławomir, Kwasik (2015). How different can h-cobordant manifolds be?. Bulletin of the London Mathematical Society.  ISSN 0024-6093.  47(4), s 617- 630 . doi: 10.1112/blms/bdv039
  • Jahren, Bjørn & Kwasik, Slawomir (2011). Free involutions on S-1 x S-n. Mathematische Annalen.  ISSN 0025-5831.  351(2), s 281- 303 . doi: 10.1007/s00208-010-0599-y
  • Jahren, Bjørn (2010). Pseudoisotopies and the Bokstedt trace. Geometriae Dedicata.  ISSN 0046-5755.  148(1), s 245- 261 . doi: 10.1007/s10711-009-9441-7
  • Jahren, Bjørn (2009). Involutions on the rational K -theory of group rings of finite groups, In  Alpine Perspectives on Algebraic Topology.  American Mathematical Society (AMS).  ISBN 978-0-8218-4839-5.  Article.  s 189 - 202
  • Jahren, Bjørn (2009). Pseudoisotopies and the Bökstedt trace. Geometriae Dedicata.  ISSN 0046-5755. . doi: 10.1007/s10711-009-9441-7
  • Jahren, Bjørn & Kwasik, S (2006). Manifolds homotopy equivalent to RP4#RP4. Mathematical proceedings of the Cambridge Philosophical Society (Print).  ISSN 0305-0041.  140
  • Jahren, Bjørn (2003). Three-dimensional surgery theory, UNil-groups and the Borel conjecture. Topology.  ISSN 0040-9383.  42, s 1353- 1369
  • Jahren, Bjørn (1999). K-theory, flat bundles and the Borel classes. Fundamenta Mathematicae.  ISSN 0016-2736.  161, s 137- 153 Show summary

View all works in Cristin

  • Rognes, John; Jahren, Bjørn & Waldhausen, Friedhelm (2013). Spaces of PL Manifolds and Categories of Simple Maps. Princeton University Press.  ISBN 978-0-691-15775-7.  192 s.
  • Baas, Nils A.; Friedlander, Eric M.; Jahren, Bjørn & Østvær, Paul Arne (2009). Algebraic Topology. The Abel Symposium 2007. Springer.  ISBN 978-3-642-01199-3.
  • Jahren, Bjørn (ed.) (2006). Motivic Homotopy Theory. Springer.  ISBN 3-540-45895-6.  222 s.

View all works in Cristin

  • Jahren, Bjørn (2017). H-Cobordisms and stabilization of diffeomorphisms.
  • Jahren, Bjørn (2016). On the work of Eldar Straume on Transformation Groups.
  • Nerland, Stener; Jørgensen, Kjetil Nordbø; Jahren, Bjørn; Melle, Ingrid; Andreassen, Ole Andreas & Agartz, Ingrid (2016). A Topological Characterisation of Cortical Folding in Schizophrenia and Bipolar Disorder.
  • Jahren, Bjørn (2015). Inertial and non-inertial h-cobordisms.
  • Jahren, Bjørn (2012). H-cobordant manifolds.
  • Jahren, Bjørn (2012). How different can h-cobordant manifolds be?.
  • Jahren, Bjørn (2012). How different can h-cobordant manifolds be?.
  • Jahren, Bjørn (2011). Eksotiske sfærer.
  • Jahren, Bjørn (2011). Exotic structures on manifolds.
  • Jahren, Bjørn (2011). Fra musikk til algebra og geometri.
  • Jahren, Bjørn (2011). Geometric Structures in Dimension two.
  • Jahren, Bjørn (2011). Relationships between h-cobordant manifolds.
  • Jahren, Bjørn (2010). Supplementary notes for MAT4520, Spring 2010.
  • Jahren, Bjørn (2009). Litt om topologisk fikspunktteori.
  • Jahren, Bjørn (2008). Topological classification of free involutions on S^1xS^n.
  • Jahren, Bjørn (2008). Topological classification of free involutions on S^1xS^n.
  • Jahren, Bjørn (2008). Topological classification of free involutions on S^1xS^n.
  • Jahren, Bjørn (2007). Topological classification of free involutions on S1xSn.
  • Jahren, Bjørn (2007). Topological classification of free involutions on S1xSn.
  • Jahren, Bjørn (2007). geometric structures.
  • Jahren, Bjørn (2006). Lefschetz-Nielsen teori og homotopi-fikspunkter.
  • Jahren, Bjørn (2006). Trace invariants for fixed and periodic points. Oberwolfach Reports.  ISSN 1660-8933.
  • Jahren, Bjørn (2006). Trace invariants for fixed and periodic points.
  • Jahren, Bjørn & Kwasik, Slawomir (2006). Free involutions on S^1xS^n.
  • Jahren, Bjørn; Rognes, John & Waldhausen, Friedhelm (2006). Spaces of PL manifolds and categories of simple maps.
  • Jahren, Bjørn (2005). Classification of free involutions on S^1xS^3.
  • Jahren, Bjørn (2005). Fixpoints and homotopy fixpoint of maps.
  • Jahren, Bjørn (2005). Introduction to surgery theory.
  • Jahren, Bjørn (2005). On manifolds homotopy equivalent to RP^4 x RP^4.
  • Jahren, Bjørn (2005). On manifolds homotopy equivalent to RP^4#RP^4.
  • Jahren, Bjørn (2005). On topological mansilds doubly covered by S^1xS^n.
  • Jahren, Bjørn (2005). Some calculations of rational homotopy of diffeomorphism groups.
  • Jahren, Bjørn (2005). Topological classification of free involutions of S^1xS^n.
  • Jahren, Bjørn (2005). Topological classification of free involutions on S^1 x S^n.
  • Jahren, Bjørn (2005). Topological classification of free involutions on S^1xS^n.
  • Jahren, Bjørn (2005). Topological classifications of free involutions on S^1xS^n.
  • Jahren, Bjørn (2004). A homological formula for the Lefschetz-Reidemeister torsion.
  • Jahren, Bjørn (2004). Geometri og geometrier i dimensjon 3 (To foredrag).
  • Jahren, Bjørn (2004). Homotoy fixpoints and Nielsen-Lefschetz theory.
  • Jahren, Bjørn (2004). Manifolds homotopy equivalent to RP^4#RP^4.
  • Jahren, Bjørn (2001). 3-dimensional surgery, UNil-groups and the Borel conjecture.
  • Jahren, Bjørn (2001). On surgery in dimension 3.
  • Jahren, Bjørn (2001). On surgery in dimension 3.
  • Jahren, Bjørn (2001). Problems and results in low-dimensional surgery.
  • Jahren, Bjørn (2000). Flat bundles and Borel classes in K-theory.
  • Jahren, Bjørn (2000). Flat bundles and Borel classes in K-theory.
  • Jahren, Bjørn (2000). Hvorfor er det så trangt i dimensjon 4?.
  • Jahren, Bjørn (2000). Hvorfor er det så trangt i dimensjon 4?.
  • Jahren, Bjørn (2000). Hvorfor er det så trangt i dimensjon 4?.
  • Jahren, Bjørn (2000). Kirurgiobstruksjonen i dimensjon 3.
  • Jahren, Bjørn (2000, 17. oktober). Mozart, menuetter og terningkast. [Radio].  "Midt i musikken" : NRK radio, P2.
  • Jahren, Bjørn (2000, 18. oktober). Mozart, menuetter og terningkast. [Radio].  "WOK" : NRK, P2.
  • Jahren, Bjørn (2000, 18. oktober). Mozart, menuetter og terningkast. [Radio].  Metropol TV.
  • Jahren, Bjørn (2000, 18. oktober). Mozart, menuetter og terningkast. [Radio].  Metropol TV.
  • Jahren, Bjørn (2000). Topology and geometry of 3-manifolds.
  • Jahren, Bjørn (1999). 3-dimensional surgery and the Borel conjecture. Show summary
  • Jahren, Bjørn & Kwasik, Slawomir (1999). 3-dimensional surgery, UNil and the Borel conjecture.

View all works in Cristin

Published Nov. 30, 2010 11:20 PM - Last modified Aug. 16, 2018 8:45 AM

Research groups