## Research Talks Given in 2006

- ``Updown Categories and Algebraic Structures," AMS Special Session
on Algebraic and Enumerative Combinatorics, Joint Mathematics Meetings,
San Antonio, Texas, January 13, 2006 (slides
available).
- ``Quasi-Symmetric Functions and Applications," combinatorics
seminar, George Washington University, Washington, DC, February 15,
2006 (slides available).
- ``Some Hopf Algebras of Physical Interest," Renormalization and
Galois Theories, Centre International de Rencontres Mathématiques,
Marseille, France, March 13, 2006 (You can view either the
slides I prepared--stolen along with my
computer on the Marseille Métro--or the slides
I actually used).
- ``Some Generating Functions for Permutations," USNA Mathematics
Colloquium, March 29, 2006 (slides available).
- ``The Algebra of Multiple Zeta Values and Euler Sums," Mini-Workshop
on Zeta Functions, Index, and Twisted K-Theory: Interactions with Physics,"
Mathematisches Forschungsinstitut Oberwolfach, Germany, May 2, 2006
(slides available).
- ``Rooted Trees and Symmetric Functions," Mini-Workshop on Zeta Functions,
Index, and Twisted K-Theory: Interactions with Physics,"
Mathematisches Forschungsinstitut Oberwolfach, Germany, May 4, 2006
(slides available).
- ``Quasi-Symmetric Functions and Multiple Zeta Values," Hopf Algebras,
Combinatorics, and Quantum Field Theory, Max Planck Institute for
Mathematics in the Sciences, Leipzig, Germany, September 28, 2006
(slides available).
- ``Multiple Zeta Values and the Gamma Function," mathematics
colloquium, Rutgers at Newark, Newark, New Jersey, October 17, 2006
(slides available).
- ``The Connes-Kreimer Hopf Algebra as a Combinatorialist's
Playground," Mathematical Physics Seminar, Boston University,
Boston, Mass., November 9, 2006 (slides available).