Recent papers

Preprints
• Lines of Minima in Outer space ,
  arXiv:0911.3620.
• (with Stefan Hainz) Topological properties of Reeb orbits on boundaries of star-shaped domains in R4 ,
  arXiv:0911.3617.
• Geometry of the mapping class group II: A biautomatic structure ,
  preprint August 2009.
• Isometry groups of proper CAT(0)-spaces ,
  arXiv:0810.3755.
• Invariant measures for the Weil-Petersson flow,
  preprint August 2008.
• Dynamics of the Teichmueller flow on compact invariant sets ,
  arXiv:0705.3812, revised version, January 2008.
• Invariant measures for the Teichmueller flow ,
  arXiv:math.DS/0607386, revised version, November 2007.
• Geometry of the mapping class groups III: Quasi-isometric rigidity ,
  arXiv:math.GT/0512429, revised version, January 2007.
• Closed Teichmueller geodesic in the thin part of moduli space ,
  arXiv:math.GR/0511349.
• Word hyperbolic extensions of surface groups ,
  arXiv:math.GT/0505244.
• Harmonic measures are product measures ,
  preprint September 2005.
• An example for nonequivalence of symplectic capacities ,
  preprint October 2002.
Recent publications
2006-2009
• Stability of quasi-geodesics in Teichmüller space ,
  Geom. Dedicata, published online. November 2009.
• Dynamical properties of the Weil-Petersson metric,
  arXiv:0901.4301, to appear in Contemporary Math.
• Rank-one isometries of proper CAT(0)-spaces,
  arXiv:0810.3794, to appear in "Discrete groups and geometric structures", proceedings of the Kortrjik-workshop, Contemporary Math.
• Isometry groups of proper hyperbolic spaces ,
  Geom. Funct. Anal. 19 (2009), 170--205.
• Bounded cohomology and cross ratios ,
  in "Limits of graphs in group theory and computer science", G. Arzhantseva, A. Valette, Editors, EPFL Lausanne Press (2009), 41--57.
• Invariant Radon measures on measured lamination space ,
  Invent. Math. 176 (2009), 223-273, the original article is available at Spingerlink
• Geometry of the mapping class groups I: Boundary amenability ,
  Invent. Math. 175 (2009), 545-609, the original article is available at Springerlink
• Equidistribution for quadratic differentials ,
  in "Groups and Analysis: The Legacy of Hermann Weyl", London Math. Soc. Lectures Notes 354, Cambridge University Press 2008, 116--132.
• Bounded cohomology and isometry groups of hyperbolic spaces ,
  J. Euro. Math. Soc. 10 (2008), 315--349.
• Geometry of the complex of curves and of Teichmüller space ,
  in "Handbook of Teichmueller Theory", Volume 1, A. Papadopoulos, ed., European Math. Soc. 2007, 447-467.
• Geometric properties of the mapping class group ,
  in "Problems on Mapping class groups" (B. Farb, ed.), Proceedings of Symposia in Pure Math. 74, AMS 2006, 215--232.
• Train tracks and the Gromov boundary of the complex of curves ,
  in "Spaces of Kleinian groups" (Y. Minsky, M. Sakuma, C. Series, eds.), London Math. Soc. Lec. Notes 329, Cambridge University Press 2006, 187-207.
2001-2005
• (With Karsten Fissmer) Spectral convergence of manifold pairs ,
  Comm. Math. Helv. 80 (2005), 725-754.
• Small eigenvalues of geometrically finite manifolds ,
  J. Geom. Anal. 14 (2004), 281-290.
• Parametrizations of Teichmüller space and its Thurston boundary ,
  in "Geometric analysis and nonlinear partial differential equations" (S. Hildebrandt, H. Karcher, eds.), Springer, Berlin 2003, 81-88.
• Length functions and parameterizations of Teichmüller space for surfaces with cusps ,
  Annales Acad. Scient. Fenn. 28 (2003), 75-88.
• Ergodic properties of Gibbs measures on nilpotent covers ,
  Erg. Th. & Dyn. Sys. 22 (2002), 1169-1179.
• (With Roman Koch) Systoles of a family of triangle surfaces ,
  Experimental Math. 11 (2002), 249-270.
• Computerprogram "funda" to compute systoles of certain triangle surfaces ,
  written by Roman Koch.
• Ergodic properties of function groups ,
  Geom. Dedicata 93 (2002), 163-176.
• New examples of maximal surfaces ,
  L'Enseignement Math. 47 (2001), 65-101.
-2000
• Cocycles, symplectic structures and intersection ,
  GAFA 9 (1999), 90-140.

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