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Seminars and Colloquiums
for the week of March 11, 2019


SPEAKERS

Monday
Ryan Unger, University of Tennessee
Wednesday
Joan Lind, University of Tennessee
Thursday
Nguyen Cong Phuc, Louisiana State University
Theodora Bourni and Mat Langford, University of Tennessee
Friday
Cristina Lanzas, North Carolina State University
Zahra Sinaei, University of Massachusetts Amherst


TEA TIME
3:00 PM – 3:30 PM
Monday (A404), Tuesday (A401) & Wednesday (A401)
Hosted by: Kelly Buch and Anna Sisk
Topics: Pros and cons of industry positions; how to transition from a graduate student to an industrial position; weekly check-in (a time for students and faculty to discuss current happenings of the Mathematics Department and share any concerns or ideas).


Monday, 3/11

GEOMETRIC ANALYSIS READING SEMINAR

Title: Preparation for Perelman's singularity analysis
Speaker: Ryan Unger, University of Tennessee
Time: 3:35 PM-5:30 PM
Room: Ayres 113
We'll discuss some classical results such as the Hamilton--Ivey estimate for 3-dimensional Ricci flows, Hamilton's Cheeger--Gromov compactness theorem for Ricci flow, and the Cheeger--Gromov--Taylor injectivity radius estimate.

Wednesday, 3/13

ANALYSIS SEMINAR

Title: Fair Peano Curves
Speaker: Joan Lind, University of Tennessee
Time: 2:30 PM-3:20 PM
Room: Ayres 113
Given a spanning tree of a rectangular grid in some domain, one can create the so-called peano curve that winds around tree. Thus the uniform spanning tree (UST), which is the random family of spanning trees that gives equal weight to each possible spanning tree, gives rise to a random family of peano curves. Lawler, Schramm, and Werner showed that the scaling limit of these curves is SLE(8). We will consider the notion of fair trees, which will lead to a different probability measure on spanning trees, and we will ask about the scaling limit of the corresponding fair peano curves. This is joint work with Nathan Albin and Pietro Poggi-Corradini.

Thursday, 3/14

DIFFERENTIAL EQUATIONS SEMINAR

Title: Muckenhoupt-Wheeden Type and Pointwise Bounds in Quasilinear Measure Datum Problems
Speaker: Nguyen Cong Phuc, Louisiana State University
Time: 2:10 PM-3:25 PM
Room: Ayres 114
Please see pdf abstract.

GEOMETRIC ANALYSIS SEMINAR

Title: Convex ancient solutions to curve shortening flow
Speaker: Theodora Bourni and Mat Langford, University of Tennessee
Time: 5:10 PM-6:25 PM
Room: Ayres 113
We show that the only convex ancient solutions to curve shortening flow are the stationary lines, shrinking circles, Grim Reapers and Angenent ovals, completing the classification initiated by Daskalopoulos, Hamilton and \v Se\v sum and X.-J.~Wang. Rather than PDE, our proof uses geometric techniques, in particular we exploit the area formula for a trapezium! This is joint work with G. Tinaglia.

Friday, 3/15

MATH BIOLOGY SEMINAR

Speaker: Cristina Lanzas, North Carolina State University
Time: 11:15 AM-12:05 PM
Room: Ayres 401
In this week's Math Biology seminar, we will enjoy a visit by Dr. Cristina Lanzas (DVM, PhD) of North Carolina State University, co-author of the paper we have been discussing: "Epidemiological Model for Clostridium difficile Transmission in Healthcare Settings." (published in Infection Control and Hospital Epidemiology, June 2011, vol. 32, no. 6 pgs. 553-561.). Graduate students Lindsey Fox and Cara Sulyok will moderate as we discuss this work in person with Dr. Lanzas. If you are interested in being added the Math Biology Seminar 'BaseCamp' site to receive notices and seminar materials directly, please contact Judy Day at judyday@utk.edu.

COLLOQUIUM

Title: Convex functional and the stratification of the singular set of their stationary points
Speaker: Zahra Sinaei, University of Massachusetts Amherst
Time: 3:35 PM-4:35 PM
Room: Ayres 405
In this talk, I discuss partial regularity of stationary solutions and minimizers u from a set \Omega\subset \R^n to a Riemannian manifold N, for the functional \int_\Omega F(x,u,|\nabla u|^2) dx. The integrand F is convex and satisfies some ellipticity, boundedness and integrability assumptions. Using the idea of quantitative stratification I show that the k-th strata of the singular set of such solutions are k-rectifiable.

 


If you are interested in giving or arranging a talk for one of our seminars or colloquiums, please review our calendar.

If you have questions, or a date you would like to confirm, please contact mlangfo5@utk.edu


Past notices:

Mar. 4, 2019

Feb. 25, 2019

Feb. 18, 2019

Feb 11, 2019

Feb. 4, 2019

Jan. 28, 2019

Jan. 21, 2019

Jan. 7, 2019

Winter Break

Dec. 10, 2018

Dec. 3, 2018

Nov. 26, 2018

Nov. 19, 2018

Nov. 12, 2018

Nov. 5, 2018

Oct. 29, 2018

Oct. 22, 2018

Oct. 15, 2018

Oct. 8, 2018

Oct. 1, 2018

Sept. 24, 2018

Sept. 17, 2018

Sept. 10, 2018

Sept. 3, 2018

Aug. 27, 2018

2017-18

 

last updated: March 2019

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