Alexander Palen Ellis


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

Fall 2011: Teaching Assistant for Columbia Math G4343 (Lie Groups and Representations I), taught by Andrei Okounkov.

Summer 2011: Instructor for two sections of Foundations of Mathematics (Columbia University High School Summer Program).
Course website.

Spring 2011: Teaching Assistant for Columbia Math V3952 (Undergraduate Seminars II), taught by Fabio Nironi.
Seminar website.

Fall 2010: Teaching Assistant for Columbia Math G4343 (Lie Groups and Representations I), taught by Grigori Olshanski.

Spring 2010: Teaching Assistant for Columbia Math V1202 Section 002 (Calculus IV), taught by Robert Friedman.

Fall 2009: Teaching Assistant for Columbia Math G4343 (Lie Groups and Representations I), taught by Mikhail Khovanov.

Summer 2009: Teaching Assistant for an REU at Columbia on the categorification of quantum groups, led by Aaron Lauda.

Fall 2008: Taught an imaginary section of Columbia Math V1102 (Calculus II).
Syllabus. First midterm.

Spring 2007: Course Assistant for Harvard Math 113 (Complex Analysis), taught by Yum-Tong Siu.
Official course web site and my course web site.

Fall 2006: Course Assistant for Harvard Math 131 (Topology), taught by Véronique Godin.
Notes on Topological Tic-Tac-Toe; or see an expanded and updated version at Concrete Nonsense (direct links: 1, 2, 3).

Summer 2006: Course Assistant for Harvard Math S-301 (Theory and Practice of Teaching Number Theory), taught by John Boller.

Spring 2005: Course Assistant for Harvard Math 21b (Linear Algebra and Differential Equations), taught by Clifford Taubes.

Fall 2004: Course Assistant for Harvard Math 1a (Introduction to Calculus), taught by Matthew Leingang.