In specified cases, you can get a text file of the original TeX file or a PostScript file.

For certain large files, the approximate size of the file is indicated.

I have not yet converted these files to PDF format for use with readers such as Acrobat. If you are interested in seeing my preprints in such a format, please e-mail me. (You must manually remove the ".spamblocker" I inserted in the e-mail address.)

Preprints are not refereed and are subject to correction, editing, revision, etc. Furthermore preprints may be submitted for publication, and copyright may be transfered in the future with no further notice (or may have been transfered in the case of preprints accepted). The maintainer of these pages reserves the right to remove preprints and has done so for some preprints once they were published.

- A lower bound for the Chung-Diaconis-Graham random process. Available on arXiv.
- Generating random vectors in (Z/pZ)^d via an affine random process, with J. McCollum. Available on arXiv.
- A Survey of Results on Random Random Walks on Finite Groups - a survey has now appeared in Probability Surveys.
- Analysis of the Diaconis-Holmes-Neal Markov Chain Sampler for Log Concave Probabilities (January 15, 2002)
- The Proof of a Conjecture of Simion (preliminary version, August 25, 2000)
- Note that an updated version with a slightly different title has been accepted for publication in the Journal of Combinatorial Theory - Series A as of April 12, 2001 and appears in the January, 2002, issue.

- Some Specialized Comparison Techniques for Doubly Stochastic Finite
Markov Chains (January 16, 2001)
- Note: Many of the ideas in this preprint appear in my article
"A Note on Various Holding Probabilities for Random Lazy Random
Walks on Finite Groups" in
*Statistics and Probability Letters*. Thus I've removed the links to this preprint.

- Note: Many of the ideas in this preprint appear in my article
"A Note on Various Holding Probabilities for Random Lazy Random
Walks on Finite Groups" in
- Random Lazy Random Walks on Arbitrary Finite Groups (preliminary version,
October 22, 1999)
- An updated version has appeared in
*Journal of Theoretical Probability*. Thus I have removed links to the preprint version of it.

- An updated version has appeared in
- The Proof of a Conjecture of Simion for Certain Partitions
(An updated version has appeared in
*Discrete Mathematics*, and so I've removed the link to the preprint version.) - "Rates of Convergence of the Diaconis-Holmes-Neal Markov Chain Sampler"
(formerly called "Rates of Convergence for a Non-Reversible
Markov Chain Sampler" and "Rates of Convergence for a
Directed
Version of the Metropolis Algorithm")
- .dvi file (December 18, 2000) (128K)
- PostScript file (464K)

- Some Random Processes Related to Affine Random Walks
- A Census of Cusped Hyperbolic 3-Manifolds, with P. Callahan and J. Weeks. (This has appeared in Mathematics of Computation. Go there!)