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I'm currently a postdoc (Bateman Research Instructor) in the Caltech mathematics department. Before that (2004-2011), I was a graduate student in the UC Berkeley math department working with Vera Serganova. Before that (2000-2004), I was an undergraduate at Brandeis University.
About Me
My mathematical interests are largely in algebraic geometry, particularly foundational questions about algebraic stacks. See my Research page for more information.
[link to notes page]

[juggling]
TeXnical notes and advice on real-time TeXing
Organization
I'm helping to organize the algebraic geometry seminar and the toric geometry student seminar at Caltech.
In the Fall of 2011, I'm teaching a topics course on algebraic spaces and algebraic stacks.
is a question and answer site for professional mathematicians. I founded it and helped to make it successful.
Contact
Web: http://stacky.net
Email: geraschenko@gmail.com
Phone: 617 275 1573 (cell), 626 395 4328 (office)
Office: 374 Sloan Hall
Work: Mathematics 253-37, Caltech, Pasadena, CA 91125 (map)
Home: 1115 Cordova St. #110, Pasadena, CA 91106 (map)