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Closed curves in the plane

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If you have a question about this talk, please contact Valentin Hübner.

There are various quantities associated to a closed curve in the plane. We will start by counting self-intersections, inflection points, and repeated tangent lines. Then I will introduce winding number and prove some relationships between these quantities. It will be an accessible talk with no prerequisites.

This talk is part of the The Archimedeans (CU Mathematical Society) series.

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