**Triangles, Rotation, a Theorem and the Jackpot**

by Dave Auckly

**Publisher**: arXiv 2013**Number of pages**: 43

**Description**:

This is an expository paper designed to introduce undergraduates to the Atiyah-Singer index theorem 50 years after its announcement. It includes motivation, a statement of the theorem, an outline of the easy part of the heat equation proof. It includes counting lattice points and knot concordance as applications.

Download or read it online for free here:

**Download link**

(2.1MB, PDF)

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