Alexander Palen Ellis

(first initial)(middle initial)(last name)at(gmail.com)
or
(last name)at(math.columbia.edu)

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written

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odd code

I am a PhD student at Columbia University. My advisor is Mikhail Khovanov.

My research interests are in representation theory, algebraic geometry, and topology. More specifically, categorification and geometric representation theory.

Python code for odd symmetric functions: I have written some Python code for working in the algebra of odd symmetric functions. Available here.

Summer 2011: I am teaching Foundations of Mathematics in the Columbia University High School Summer Program.

Spring 2011: I am TAing an undergraduate seminar on symmetric functions, symmetric group representations, and Hopf algebras.

Some pictures:
a taxidermic snake lemma: 1, 2, 3
the octahedral axiom, with wood and glue: 1, 2

Fall 2009: We have an informal graduate student seminar on the Atiyah-Singer index theorem. All are welcome.