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Department of Mathematics Michler Lecture Series - Julie Bergner, The University of Virginia. Talk Title: 2-Segal structures and the Waldhausen S-construction

Thursday, October 18, 2018 at 4:00pm to 5:00pm

Malott Hall, 532

The Ruth I. Michler Memorial Prize of the AWM is awarded annually to a woman recently promoted to associate professor or an equivalent position in the mathematical sciences. The prize provides a fellowship for the awardee and enables her to focus on her research in the stimulating environment of the Cornell University Mathematics Department during a semester that is free from teaching obligations. Recently promoted associate professors face many challenges as they prepare to take on greater leadership in research and in the profession. The Ruth I. Michler Memorial Prize honors outstanding women at this stage of their careers. Each year, the Michler Fellow is invited to give a lecture to an audience of faculty and graduate students.

Title: 2-Segal structures and the Waldhausen S-construction

Abstract: The structure of a 2-Segal space was defined by Dyckerhoff and Kapranov and independently by Galvez-Carrillo, Kock, and Tonks under the name of decomposition space.   Both groups found many examples in algebra, topology, and combinatorics, yet a common one was the output of Waldhausen's S-construction when applied to an exact category.  In joint work with Osorno, Ozornova, Rovelli, and Scheimbauer, we give a more general version of this construction so that every 2-Segal space arises from it.

Event Type

Lecture

Departments

Mathematics

Website

http://www.math.cornell.edu

Cost

Free

Hashtag

##cornellmath

Contact E-Mail

hko1@cornell.edu

Contact Name

Heather Peterson

Contact Phone

607-255-4013

Speaker

Julie Bergner

Speaker Affiliation

The University of Virginia

Dept. Web Site

http://math.virginia.edu/people/jeb2md/

Disability Access Information

If you need any special accommodations (e.g., dietary constraints, mobility constraints, etc.), please contact Heather Peterson

Reception

3:30pm in 532 Malott Hall

Open To

Public

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