Amir Mohammadi

How to reach me

• Paper mail:
  Department of Mathematics
  The University of Texas at Austin
  1 University Station, C1200
  Austin, TX 78750
  USA
  
  
• Office: RLM 12.160
  
• E-mail: amir@math.utexas.edu
  
• Phone: (512) 471-8186 (Office)
  
• Fax: (512) 471-9038
  

Preprints and publications

• Ergodicity of unipotent flows and geometrically finite Kleinian groups. pdf, (with H. Oh). Preprint.
  
  
• Logarithm laws for one parameter unipotent flows. pdf, (with D. Kelmer). To appear in GAFA.
  
  
• On presentations of integer polynomial points of simple groups over number fields. pdf, (with K. Wortman). Preprint.
  
  
• A special case of effective equidistribution with explicit constants. pdf, To appear in Ergodic Theory Dynam. Systems
  
  
• Measures invariant under horospherical subgroups in positive characteristic. pdf, J. Mod. Dynamics. 5 (2011), no. 2, 237--254.
  
  
• The extremal symmetry of arithmetic simplicial complexes. pdf, (with B. Farb). Preprint.
  
  
• Quantitative version of the Oppenheim conjecture for inhomogeneous quadratic forms. pdf, (with G. A. Margulis). Duke Math. J. 158 (2011), no. 1, 121--160.
  
  
• A joining classification and special case of Raghunathan's conjecture in positive characteristic. pdf, (with M. Einsideler, with an appendix by K. Wortman). To appear in J. D'Analyse Math.
  
  
• Discrete transitive actions on vertices of Bruhat-Tits buildings. pdf, (with A. Salehi Golsefidy). To appear in Duke Math. J.
  
  
• Translates of horospherical measures and counting problems. pdf, (with A. Salehi Golsefidy). Preprint.
  
  
• Unipotent flows and isotropic quadratic forms in positive characteristic. pdf. To appear in Int. Math. Res. Notices.
  
  
• Simultaneous Diophantine approximation on non-degenerate p-adic manifolds. pdf (with A. Salehi Golsefidy). To appear in Israel J. Math.
  
  
• S-Arithmetic Khintchine type theorem pdf (with A. Salehi Golsefidy). Geom. and Func. Anal. 19 (2009), no. 4, 1147--1170.
  
  
• SL(n,Z[t]) is not FP_n-1. pdf (with K. U. Bux and K.Wortman). Comm. Math. Helv. 85 (2010), no. 1, 151--164.
  
  

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  Amir Mohammadi ( amir@math.utexas.edu)