On the number of prime factors of values of the sum-of-proper-divisors function (pdf)
J. Number Theory 150C (2015) pp. 120-135
My next paper (in preparation) establishes the existence of bounded gaps between primes in function fields which possess a given primitive root.
Slides from talks
UGA Graduate Student Seminar, November 2014
(warning: TikZ diagram is somewhat illegible in handout mode)