Math Colloquium: Megan Owen

This event has passed.

Monday, March 27, 2023

3:00 pm

4214: Math Lounge

Internal Event

The event is in-person at the CUNY Graduate Center, Room 4214 (Math Lounge).

Hosted By
Admission Price

Free

Speaker

Megan Owen, CUNY Graduate Center

Title

The geometric space of phylogenetic trees: Algorithms and Applications

Abstract

A phylogenetic tree represents the evolutionary history of a set of organisms, like marsupials or virus strains. Billera, Holmes, and Vogtmann defined a moduli space of metric trees to provide a natural geometric setting for analyzing phylogenetic tree data. This treespace is CAT, or non-positively curved, allowing algorithms to quickly compute distances and Frechet means. I will discuss both these algorithms and some recent applications of this space to problems in evolutionary biology.

View colloquium flyer

 


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CUNY attendees must show proof of vaccination by presenting a valid CUNY Access Pass through the CLEARED4 health validation platform upon entry. Non-CUNY visitors will need to show proof of ID by presenting a valid government-issued photo document. See the full Building Entry Policy for more information.