- A Conference in Memory of the Batemans and Heini Halberstam (Summer 2014)
- University of Illinois at Urbana-Champaign Number Theory Seminar (Spring 2014)
- Purdue University Number Theory Seminar (Spring 2014)
- University of Wisconsin-Madison Number Theory Seminar (Fall 2013)
- Eastern Illinois University Colloquium (Spring 2013)
- Penn State Algebra and Number Theory Seminar (Fall 2012)
- University of Rochester Number Theory Seminar (Spring 2012)
- Binghamton University Graduate Conference in Algebra and Topology (Fall 2011)
- University of Rochester Number Theory Seminar (Fall 2011)
- First Upstate New York Number Theory Conference (Spring 2011)
- Binghamton University Graduate Conference in Algebra and Topology (Fall 2010)
- Number Theory Lunch Seminar at the Max Planck Institute for Mathematics (Summer 2010)
- Kyiv Mathematical Society Colloquium, Summer 2010
- Texas A&M Algebra and Combinatorics Seminar, Spring 2010
- Texas A&M Number Theory Seminar, Spring 2010
- Cornell University, Topology & Geometric Group Theory Seminar, Winter 2010
- Binghamton University Graduate Conference in Algebra and Topology Fall 2009 (my foto)
- The Algebra Seminar, Department of Mathematics, Binghamton University (Fall 2009)
- The Claremont Center for the Mathematical Sciences
Algebra/Number Theory/Combinatorics Seminar (Fall 2009) - Number Theory Lunch Seminar at the Max Planck Institute for Mathematics (Summer 2009)
- Seminar of the Research Group of Hendrik W. Lenstra at the University of Leiden (Summer 2009)
- Algebra Seminar, Department of Mathematics, Syracuse University (Spring 2009)
- Binghamton University Graduate Conference in Algebra and Topology 2008 (Fall 2008)
- NSF-CBMS Ergodic Ramsey Theory Conference (Summer 2008)
- The Algebra Seminar, Department of Mathematics, Binghamton University (Spring 2008)
- Algebra Seminar, Department of Mathematics, Syracuse University (Fall 2007)
- Topology & Geometric Group Theory Seminar, Department of Mathematics, Cornell University (Fall 2007)
- The Algebra Seminar jointly with Colloquium, Department of Mathematics, Binghamton University (Fall 2007)