Papers


  • The abelianization of the level L mapping class group - [abstract] [pdf] [ps]
    preprint 2008, submitted.

  • Symplectic Heegaard splittings and linked abelian groups (with J. Birman and D. Johnson) - [abstract] [pdf] [ps]
    to appear in "Groups of Diffeomorphisms".

  • Irreducible Sp-representations and subgroup distortion in the mapping class group (with N. Broaddus and B. Farb) - [abstract] [pdf] [ps]
    preprint 2007, submitted.

  • The Casson invariant and the word metric on the Torelli group (with N. Broaddus and B. Farb) - [abstract] [pdf] [ps]
    C. R. Acad. Sci. Paris, Ser. I 345 (2007) 449--452.

  • An infinite presentation of the Torelli group - [abstract] [pdf] [ps]
    preprint 2007, submitted.

  • A note on the connectivity of certain complexes associated to surfaces - [abstract] [pdf] [ps]
    to appear in L'Enseignement Math.

  • Cutting and pasting in the Torelli group - [abstract] [pdf]
    Geom. Topol. 11 (2007) 829--865.

  • The rationality of sol manifolds - [abstract] [pdf] [ps]
    J. Algebra 304 (1) (2006) 190--215.