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Preprints and unpublished material


  1. The Schottky-Klein prime function and counting functions for Fenchel double crosses
  2. Higher Teichm├╝ller theory for surface groups and shifts of finite type (with R. Sharp)
  3. Counting geodesic arcs in a fixed conjugacy class on negatively curved surfaces with boundary
  4. Maximizing measures for Bernoulli measures and the Gauss map
  5. Zeta functions for higher Teichmuller spaces (with R. Sharp)
  6. Rigorous dimension estimates for Cantor sets arising in Zaremba theory (with O. Jenkinson)

Papers accepted for publication

Surveys and notes from short lecture courses

  1. Lectures on decay of correlations for flows, Uncorrected notes of lectures given in Jerusalem (1997)
  2. Lectures on ergodic theory, geodesic flows and related topics, Uncorrected notes of lectures given in Ulm (2003)
  3. Dynamical zeta functions and closed orbits for geodesic and hyperbolic flows Published survey, Les Houches (2003)
  4. Fractals and Dimension Theory, Introductory lectures given in Porto (Apr-May, 2005)
  5. Dynamical Zeta functions, Lecturesgiven in Leiden (June, 2010)
  6. Dynamical zeta functions and the distribution of orbits, to appear in Handbook of Group Actions V [based on lectures given in Grenoble (June 2013)]
  7. Hyperbolic systems, zeta functions and their applications Lectures from Warsaw (2015)
  8. Lectures on geodesic flows Uncorrected handwritten notes from ESI Vienna (2016)
  9. Lectures on Bowen-Series method and zeta function Uncorrected handwritten notes from Shenszen (2016)
  10. Lectures on fractals and dimension Uncorrected handwritten notes from Tehran (2017)
  11.  Exponential mixing Notes from Mumbai (2017) (handwritten notes)
  12.  Appolonius Circle packings A 4 page historical survey.
  13. Appolonius and his circles, to appear in the Notices of the London Mathematical Society
  14. Lectures on geodesic flows, Lectures from Lisbon (2018)

Miscellaneous notes (not intended for publication)

  1. Limit points for tetrahedra and inscribed spheres An amusing, but elementary, result
  2. Estimating variance for expanding maps An unfinished note somewhat superceded by newer ideas
  3. A note on the arcsine law for geodesics A modest distributional result for geodesics
  4. Formulae for residues of Dynamical Zeta functions A note where the results didn't prove as useful as I hoped.
  5. Statistical properties of the Rauzy-Veech-Zorich map A note written for my own education on Rauzy-Veech-Zorich maps.
  6. Curvature of configuration spaces for planar linkages (with M.L.S. Magalhaes): A longer version of the published article.
  7. How to create chaos at home (with a 10 second movie and poster ) A poster on how to construct a chaotic linkage.
  8. Another account of the Dani-Smillie theorem An account I used in my Ergodic Theory course
  9. Multiple mixing for hyperbolic flows A project I started (but never finished) during a Sabbatical.
  10. Large deviations, Gibbs measures and closed geodesics for rank one geodesic flows A modest result now out of date