Homepage of Stefan Haller
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Contact
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Vita
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Publications
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Talks
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Teaching
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Pictures
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Links
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2009:
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Witten deformation of non-selfadjoint Laplacians.
Special meeting of the Central European Seminar on Differential Geometry in Honor of the 60th Birthday of
Peter Michor, Mikulov, Czech Republic, May 29-30, 2009.
2008:
2007:
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Exponential growth and Novikov complex.
Topology seminar,
Ohio State University,
Columbus, OH, September 25, 2007.
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Complex valued Ray--Singer torsion.
Algebraic Topology: Old and New,
M.M. Postnikov Memorial Conference,
Banach Center, Bedlewo, June 23rd, 2007.
Transparencies of the talk:
DVI
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PS
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PDF
2006:
2005:
2004:
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Exponential growth and Novikov conjecture. Conference
Topology of closed one-forms,
ETH Zürich, December 15th, 2004.
Transparencies of the talk:
DVI
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PS
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PDF
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The geometric complex of a Morse--Bott--Smale vector field and an extension
of a theorem of Bismut--Zhang.
AMS Meeting,
Evanston, October 23rd, 2004.
Abstract:
DVI
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PS
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PDF
Transparencies of the talk:
DVI
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PS
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PDF
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An extension of a theorem by Bismut--Zhang to Morse--Bott vector fields.
Topology Seminar,
Max Planck Institut for Mathematics,
Bonn, September 17th, 2004.
Transparencies of the talk:
DVI
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PS
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PDF
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Smooth perfectness of diffeomorphism groups.
Conference
Geometry and Analysis on Manifolds,
Celebrating the 60th birthday of Dan Burghelea,
Ohio State University,
Columbus, OH, March 26--28th, 2004.
Transparencies of the talk:
DVI
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PS
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PDF
2003:
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Poisson harmonic forms.
Topology seminar,
Ohio State University,
Columbus, OH, September 3, 2003.
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Harmonic cohomology of symplectic manifolds.
5th Conference Geometry and Topology of Manifolds,
Krynica, Poland, April 27--May 3, 2003.
Transparencies of the talk:
DVI
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PS
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PDF
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Harmonic cohomology of symplectic manifolds.
The 23rd
Winter School Geometry and Physics,
Srni, Czech Republic, January 18--25, 2003.
2002:
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Symplectic manifolds and harmonic classes.
Seminar of Geometry and Topology,
West University of Timisoara,
Timisoara, Romania, July 10, 2002.
Transparencies of the talk:
DVI
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PS
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PDF
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Harmonic cohomology of symplectic manifolds.
The 22nd
Winter School Geometry and Physics,
Srni, Czech Republic, January 12-19, 2002.
Transparencies of the talk:
DVI
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PS
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PDF
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Harmonic cohomology of symplectic manifolds.
Analysis seminar,
University Zurich,
Zurich, Swizerland, January 10, 2002.
Transparencies of the talk:
DVI
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PS
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PDF
2001:
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Floer cohomology based on non-contractible 1-periodic trajectories.
8th International Conference on Differential Geometry and its Applications,
Opava, Czech Republic, August 27-31, 2001.
Transparencies of the talk:
DVI
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PS
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PDF
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Floer cohomology and non-contractible periodic orbits of time
dependent symplectic vector fields.
Geometric Analysis seminar,
Ohio State University,
Columbus, OH, January 19, 2001.
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Totally geodesic subgroups of diffeomorphism groups.
Topology seminar,
Ohio State University,
Columbus, OH, January 16, 2001.
2000:
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A survey on locally conformal symplectic manifolds.
Howard Conference on Infinite Dimensional Lie Groups in Geometry and Representation Theory,
Howard University,
Washington, DC, August 17-21, 2000.
Preprint of my contribution to the proceedings:
DVI
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PS
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PDF
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Locally conformal symplectic manifolds.
Topology seminar,
Ohio State University,
Columbus, OH, April 25, 2000.
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On the group of diffeomorphisms preserving a locally conformal symplectic structure.
The 20th
Winter School Geometry and Physics,
Srni, Czech Republic, January 15-22, 2000.
1998:
1997: