• I am a Professor at the Department of Mathematics, UCLA. I work in a number of mathematical areas, but primarily in harmonic analysis, PDE, geometric combinatorics, arithmetic combinatorics, analytic number theory, compressed sensing, and algebraic combinatorics.  I am also an editor or associate editor at several mathematical journals. Here are  my papers and preprints, my books, and my research blog.
• Think you might know me from somewhere?  Here's how you can contact me.  If you are a representative of the media, please visit this page instead.  
• For information about my current or past teaching, visit this page.

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