An Extremely Short Proof of the Hairy Ball Theorem with Peter McGrath

<p>Today <a href="https://math.sciences.ncsu.edu/people/pjmcgrat/">Peter McGrath</a><br><a href="https://www2.math.upenn.edu/~pjmcgrat/research/hairy-ball.pdf" target="_blank" rel="noopener noreferer">An Extremely Short Proof of the Hairy Ball Theorem</a>. Peter is a professor of mathematics at NC State, where he researches geometric analysis, minimal surfaces, PDEs. </p><p>Today&#39;s talk was an elegant presentation of the classical result -- Peter makes it accessible, and explains each concept in a clear and transparent manner. This was a really fun talk and really back to our roots as a group, doing pure math on an iPad and loving it! We hope you enjoy the talk as much as we did!</p>