2025-2026 Lectures

Professor Allison Miller (Mathematics & Statistics)

Title: Topology in four dimensions: why knot?

Thursday, September 25, 2025

4:30 pm

Singer Hall 033

Topology is the study of those properties of shapes and spaces that are unaltered by gradual changes. For example, a circle can be slowly deformed into a square, and so a circle and a square are topologically equivalent. On the other hand, a ball cannot be incrementally modified to become a doughnut, and so a ball and a doughnut are topologically different.

This talk will begin with a historical introduction to topology, focusing on the sub-area of knot theory. We'll then visualize surfaces in 4-dimensional space by exploring their knotted cross-sections. Finally, I'll present some recent work showing that some knots appear as the boundary of many different disks in 4-dimensional space, joint with M. Powell (2019) and J. Meier (preprint 2025). No previous experience with topology (or 4-dimensions!) is expected.

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Professor Oliva Sabee (Dance)

Professor Olivia Sabee

Thursday, October 23, 2025
4:30 pm
Location: Singer 033

In the 1790s, the French and Haitian Revolutions brought waves of French immigrants to the east coast of the United States, among them several groups of dancers. Focusing on the practices and performances of three prominent dancers — Alexandre Placide, Suzanne Theodore Taillandet Douvillier, and Jean-Baptiste Francisqui — this talk will introduce the concept of pantomime ballet, a widely popular European performance form, and analyze how it was transformed via first, the Caribbean colonial performance circuit, and second, its new U.S. context, where Francisqui created numerous politically-themed works, such as The Americans and the French at the Siege of York-Town; or America Preserved (1795).

In both Charleston and Philadelphia, as had also been the case in France, contemporary discourses around civilization and nature, liberty and despotism, shaped the reception of these works. Yet the dancers’ distinctive embodied histories, notably their expertise in acrobatics and the impersonation of Afro-diasporic peoples, created a divergent reading of these dances in which the minuet, a symbol of the aristocracy, came to represent freedom rather than carefully cultivated constraint.

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