I am a fourth year grad student in Algebraic Topology at Columbia University. My advisor is Søren Galatius. Before Columbia, I was a Phd Student at the University of Copenhagen, in the GeoTop center. Broadly speaking, I am interested in Geometric Topology and its interactions with Homotopy Theory.

You can now reach me at ap4753(at)columbia(dot)edu.

I am happy to be supported by a Simons dissertation fellowship, starting Summer 2026.

Talks

• April 2026 - The Poincaré Cobordism category and its first Goodwillie derivative, Manifolds and moduli - Lisbon
• March 2026 - The Poincaré Cobordism category for surfaces, UVA Topology Seminar - Charlottesville
• December 2025 - Cobordism Categories, Goodwillie Calculus and Thom spectra, MHTRT seminar - Online
• June 2025 - Variations on the surface cobordism category – Young Topologists Meeting - Stockholm
• May 2025 - Excision properties of variations on the surface cobordism category - Columbia Algebraic Topology Seminar - New York City