Software engineer
kerl.john.r@gmail.com
Series/conference  Date  Title  Materials 

Two Sigma Investments  Jan. 2012  Markov Jabberwocky: Through the Sporking Glass  Abstract, slides. 
UA Math Dept. Graduate Student Colloquium  Apr. 2010  Notes on a nonacademic job search  Abstract, slides. 
Job talk  Mar. 2010  Markov chain Monte Carlo methods and random spatial permutations  Slides. 
University of Georgia Center for Simulational Physics 2010 Workshop  Feb. 2010  A worm algorithm for random spatial permutations  Abstract, slides, manuscript. 
UA Math Dept. Graduate Student Colloquium  Feb. 2010  Tensorama  Abstract, slides. 
AMS/MAA Joint Meetings, San Francisco 
Jan. 2010  MCMC methods for random spatial permutations  Abstract, slides. 
UA Math Dept. Software Interest Group  Oct. 2009  Python for the working (or aspiring) mathematician  Abstract, slides, hello.py, lorenz.py, plot2.py, projdown.py, tabutil.py, allinone.py. 
UA Math Dept. Math. Physics Seminar  Sep. 2009  Critical behavior for the model of random spatial permutations  Abstract, slides. 
UA Math Dept. Graduate Student Colloquium  Aug. 2009  Markov Jabberwocky: fesh, excenture, and the like  Abstract, slides, layaudience version. 
Stochastic processes and their applications, Berlin 
Jul. 2009  Numerical methods for random spatial permutations  Abstract, slides. 
Workshop on quantum spin systems and applications in quantum computation,
Tucson 
Jun. 2009  Lattice quadrupling for percolation in quantum networks  Slides. 
UA Math Dept. comprehensive examination  Jan. 2009  Remarks on interacting spatial permutations and the Bose gas  Paper, slides. 
UA Math Dept. Graduate Student Colloquium  Oct. 2008  Computational methods in percolation  Abstract, slides. 
UA Math Dept. Applied Brown Bag  Oct. 2008  High performance arithmetic  Abstract, slides in PDF, slides in PowerPoint. 
UA Math Dept. Math. Phys. Seminar  Oct. 2008  Lattice quadrupling for percolation in quantum networks  Abstract, slides. 
UA Math Dept. Software Interest Group  Apr. 2008  C for math folks  Abstract, slides. 
UA Math Dept. Math. Physics Seminar  Apr. 2008  Monte Carlo methods for interacting spatial permutations  Abstract, slides, paper. 
UA Math Dept. Graduate Student Colloquium  Mar. 2008  Quantum mechanics for math grads  Abstract, paper, 1D SE solver, 2D SE solver, twostate example. 
UA Math Dept. Graduate Probability Seminar  Feb. 2008  The MetropolisHastings algorithm by example  Abstract, paper, code. 
UA Math Dept. Graduate Student Colloquium  Jan. 2008  Numerical Differential Geometry in Matlab  Abstract, slides, Matlab code 
UA Math Dept. Graduate Student Colloquium  Sep. 2007  Is 2 a random number?  Abstract, paper 
UA Math Dept. Graduate Student Colloquium  Feb. 2007  The Householder transformation, Swiss Army knife of numerical linear algebra  Abstract, paper 
UA Math Dept. Software Interest Group  Oct. 2006  Perl for the working (or aspiring) mathematician  Abstract, slides 
UA Math Dept. Graduate Student Colloquium  Sep. 2006  Tensorama  Abstract, paper (see the section titled Tensors) 
UA Math Dept. Software Interest Group  Apr. 2006  Concrete abstract algebra in Python  Abstract, slides, paper 
UA Math Dept. Graduate Colloquium  Mar. 2006  A walking tour through projective spaces  Abstract 
UA Math Dept. Graduate Colloquium  Jan. 2006  Computation in finite fields  Abstract, paper 
UA Math Dept. Software Interest Group  Sep. 2005  Introduction to the vim text editor  Slides 
UA Math Dept. Graduate Colloquium  Sep. 2005  Linear feedback shift registers  Abstract, paper 
Master’s thesis defense, ASU  Apr. 2005  Codes and Curves  Abstract, slides, thesis 
ASU/Lockheed Martin Seminar Series  Oct. 2004  High performance arithmetic  Slides in PDF, slides in PowerPoint 
ASU Graduate Student Seminar Series  Sep. 2004  An introduction to coding theory for mathematics students  Abstract, paper 
ASU Graduate Student Seminar Series  Apr. 2004  Linear feedback shift registers  Abstract, paper 
DesignCon, San Jose  Feb. 2004  A reference design for FPGAbased Linux applications  
DesignCon, San Jose  Feb. 2004  A reference design for embedded ucLinux on a Motorola ColdFire processor  
ASU Graduate Student Seminar Series  Dec. 2003  Computation in finite fields  Abstract, paper 
Formal papers:
This is a collection of papers, presentation materials, and software: mostly mathematical, and mostly from my 20052010 PhD years in the University of Arizona Department of Mathematics ... although some new content does trickle in from time to time. :)
Image credit for the clock layer of the background image is here. The formula/code/graph layers are my own, from various parts of this site.
