Jonathan A Poritz

Decomposition of the trace plane by type of corresponding
Ford domain Primary position, course info
• I am an Assistant Professor in the
Department of Mathematics and Physics
at Colorado State University, Pueblo, where
I teach, in the Spring semester of 2010:
  • Math 425: Complex Variables
        (here is its schedule/HW page)

  • Math 126: Calculus and Analytic Geometry I
        (here is the HW page)
• Web pages for (some) past courses are here.
Here is a link to my usual daily schedule.


Random Useful Information A type {2,7,5} example on the boundary of hyperbolic space
• Current analog contact coordinates are available here.
• E-mail: jonathan.poritz@gmail.com (That is my primary, preferred e-mail address. If something seems not to be working with it, however, you can try poritzj@post.harvard.edu or jonathan@poritz.net)
Feel free to send me encrypted e-mail, by using my GnuPG key (Fingerprint:7C8B ADBA FE03 3C31 4E52 071D 8488 65F3 7638 565E)
• In case you need to be able to recognize me on the high seas, here is an image of me.
Here is a fairly up-to-date Curriculum Vitæ; or else here are some recent affiliations.

Random Scientific Information
• Some of my [p]reprints can be found here.
• Follow this link for some interactive mathematics -- using a Java applet to help visualize the geometry of fundamental domains (like the pattern of circles above) for the action of cyclic subgroups of PSL(2,C) on the boundary of three-dimensional hyperbolic space H3.
• Many pretty fundamental domains (like the one to the left) in the interior of H3 for the action just mentioned are shown in a gallery.

Some purely personal pictures might be found here. The 3-dimensional moduli space of boundary compactifications

An explanation of the background is available for the incurably curious; other pictures on this page are fully explained in my papers -- read them or weep!


Jonathan Poritz (jonathan.poritz@gmail.com)