Olga Holtz is Russian mathematician born in 1973 specializing whose parents where both programmers and performs with the Berlin Philharmonic Choir, practices ballroom dancing and is a filmmaker/screenwriter.
A bio from Modern Mathematics Summer School:
Olga Holtz is a professor of Mathematics at the University of California-Berkeley, a professor of Applied Mathematics at Technical University Berlin, and a professor at the Berlin Mathematical School. She received the Sofja Kovalevskaja award in 2006 and a European Mathematical Society Prize in 2008. Among her research interests are Numerical Analysis, Approximation Theory, Commutative Algebra, Enumerative Combinatorics, Sensing and Probability. Her Erdös number is 3.
To learn more about her and her work would suggest taking a look at these pages:
The Beauty of Mathematics – video