Indira Chatterji

Statement

I am a visual mathematician, and I find very satisfying to be able to share my thoughts and understanding of mathematics through animations. Hand writing and drawing a mathematical talk creates a special connection with the audience, and recent software and devices have made complicated animations increasingly accesible to me. The craftmanship of animations resembles in many ways the mathematical creation process. I feel privileged to help everyone enjoy deep mathematical ideas, regardless of their background or knowledge of mathematics.

Films

Someone asked me the question, to actually see the deformation between the Klein bottle with a disk removed, and the so-called Möbius’ briefs (“slip de Möbius” in French), as they had seen it nowhere yet. This is the first piece of a trilogy, described here: http://chatterj.perso.math.cnrs.fr/Stril.html

Those were my early drawings, assembled into a movie. They show how a genus 2 surface can be cut open to an octogone, and how a contractible loop on it looks like. This is the second piece of a surface trilogy accessible here: http://chatterj.perso.math.cnrs.fr/Stril.html

This was inspired from my topologists friends’ explanations on how a particular type of homeomorphism works. It illustrates a Dehn twist along a simple closed curve on a torus, and the effect on a curve transverse to it. This is the third part of a surface trilogy accessible here: http://chatterj.perso.math.cnrs.fr/Stril.html