I have moved, please visit my current page at Columbia

Jason Behrstock

Department of Mathematics

University of Utah

155 S 1400 E

Salt Lake City, UT, 84112-0090

email: jason@math.utah.edu

Office: 212 LCB (LeRoy Cowles Bldg)

Phone: 801.581.7467

Kaia helping me plan class!

My primary interests are in geometric group theory and low dimensional topology.
A current curriculum vitae and research statement are available.

Papers (for the current list, please visit http://math.columbia.edu/~jason):

(Available as PDF files, email me if you need an alternate format.)

• Asymptotic Geometry of the Mapping Class Group and Teichmuller Space
      SUNY Stony Brook Ph.D. Thesis, May 2004.
• Asymptotic Geometry of the Mapping Class Group and Teichmuller Space
      (The last two sections of this paper contains new results not in the Ph.D. thesis.)
      This version is more current than the one at the arXiv.
      Geometry & Topology 10: 1523-1578, 2006.
• Curve complexes and finite index subgroups of mapping class groups, with Dan Margalit.
      Geometriae Dedicata 118 (1): 71-85, 2006.
      Springer online published version, subscription required.
• Dimension and rank for mapping class groups, with Yair Minsky
      Annals of Mathematics, to appear.
• Thick metric spaces, relative hyperbolicity, and quasi-isometric rigidity, with C. Drutu and L. Mosher
      Preprint, December 2005.
• Quasi-isometric classification of graph manifolds groups , with W. Neumann
      Duke Mathematical Journal, to appear.

Teaching

Fall 2006: Mathematics 1060 (Trigonometry)
Office Hours: 2-3 PM Mondays and Wednedays.

Summer 2006 REU

I organized a summer REU on "The Geometry of Mobius Transformations."

Conferences (upcoming or recent)

If you want to talk with me, I'll be at the following upcoming conferences:
• Spring Topology and Dynamics Conference, March 2006
• University of Arkansas Spring Lecture Series, April 2006
• Combinatorial and geometric group theory, May 2006.
• Georgia Topology Conference, May 2006
• Conference on Geometric Group Theory at CRM, July 2006
• AMS Sectional Meeting in Salt Lake City, UT; Special Section on Low Dimensional Topology and Geometry, October 2006
• AMS/MAA Joint Meeting in New Orleans, LA; Special Session on Geometric Group Theory, January 2007
• Topology Conference at the Banff International Research Station, February 2007

There is also the Max Dehn seminar where I am every week!

Misc

Kashi Behrstock's web page.
Pictures of my daughter: Kaia Sophia Behrstock.
Pictures.
"The Mapping Class Group Game" for Macintosh (and now for Windows, too!) by Kazushi Ahara.
For the 2004-2005 academic year, I was a member of the Barnard/Columbia Mathematics Department; my web page there is still available at: http://math.columbia.edu/~jason

This material is based upon work supported by the National Science Foundation under Grant No. 0604524
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.