- Here some talks I have presented about my research.
(with slides and some even with video available).
- At the national and international level, I have been active organizer of
many events. From some long

and large (e.g., the semester on Discrete and Computational Geometry at the Mathematical Science

Research Institute (MSRI) in Berkeley Fall of 2003), to some smaller shorter events (e.g., several SIAM,

MAA, and AMS meetings). I have also organized conferences at AIM, BIRS-Banff, IPAM, Oberwolfach.Here are some events Events in which I am actively involved, either as organizer or scientific committee or participant:

- I regularly attend, I have organized, and help found our
Algebra and Discrete Mathematics Seminar.

The UC Davis Algebra Discrete Math group also helped to launch, and continues to support,

the**Bay Area Discrete Math Day**, (widely known for its great mathematical lectures and its curious acronym).