Preprints

  • On the second cohomology of the norm one group of a $p$-adic division algebra, pdf
    preprint. Revised March, 2008.

    Submitted papers

  • Kazhdan quotients of Golod-Shafarevich groups, with appendices by Andrei Jaikin-Zapirain, pdf ,
    submitted. Revised September, 2009.

    Accepted papers

  • Abstract commensurators of profinite groups, with Yiftach Barnea and Thomas Weigel, pdf
    accepted by Transactions of the Americal Mathematical Society

  • On the commensurator of the Nottingham group, pdf
    accepted by Transactions of the Americal Mathematical Society

    Published papers

  • Property (T) for noncommutative universal lattices, with Andrei Jaikin-Zapirain , pdf
    Inventiones Mathematicae 2010, no.179(2), 303-347

  • Golod-Shafarevich groups with property (T) and Kac-Moody groups, pdf
    Duke Mathematical Journal 2008, no.145(2), 309-339

  • Abstract simplicity of complete Kac-Moody groups over finite fields, with Lisa Carbone and Gordon Ritter, pdf,
    Journal of Pure and Applied Algebra 2008, no. 212(10), 2147-2162

  • Finite presentability of $SL_1(D)$, pdf
    Israel Journal of Mathematics 2007, no. 158, 297-347

  • On subgroups of the Nottingham group of positive Hausdorff dimension, pdf
    Communications in Algebra 2007, no. 35(1), 193-206

  • The Nottingham group is finitely presented, pdf
    Journal of the London Mathematical Society 2005, no. 71(2), 362-378.

  • New just-infinite pro-$p$ groups of finite width and subgroups of the Nottingham group, pdf
    Journal of Algebra 2004, no. 275(1), 419-449.

  • On distortion of subsemigroups,
    Moscow Univ. Bull. 1999, no. 4, 56-58.