**Seminars and Colloquiums**

for the week of September 10, 2018

for the week of September 10, 2018

*SPEAKERS*

**Monday**

Jerzy Dydak, University of Tennessee

Tuesday

Rangrang Zhang, Beijing Institute of Technology

Ryan Unger, University of Tennessee

**Wednesday
**Analysis Seminar

**Friday**

Jessica Beck, University of Tennessee (EEB graduate student)

**TEA TIME**

3:00 PM – 3:30 PM

Monday, Tuesday, & Wednesday

Room: Ayres 401

Hosted by: Tricia Phillips and Lindsey Grinstead

Topics: Balancing teaching and coursework; discussing the different teaching mentorship programs this year and how they are going for those in them; reflecting on teaching philosophies.

**Monday, 9/10**

TOPOLOGY/ GEOMETRY SEMINAR

TITLE: Compactifications via ultrafilters

SPEAKER: Jerzy Dydak, University of Tennessee

TIME: 3:35 PM-4:25 PM

ROOM: Ayres 406

I will discuss constructing compactifications using ultrafilters and applying the following result from the book "Geometric group theory" (Cornelia Drutu and Michael Kapovich):

Lemma 1.18. [Extension lemma] Suppose that X,Y topological spaces, where Y is regular and X contains a dense subset A.

1. If f : X to Y is a mapping satisfying the property that for each x in X the restriction of f to A union {x} is continuous, then f is continuous.

2. Assume now that A is open and set X\A=Z. Suppose that f:X to Y is such that the restriction f to A union {z} is continuous at z for every point z in Z. Then f:X to Y is continuous at each point z of Z.

A proof of the lemma will be presented.

**Tuesday, 9/11**

STOCHASTICS/PROBABILITY SEMINAR

TITLE: Ergodicity and large deviations for two kinds of fluid mechanics driven by stochastic forcing

SPEAKER: Rangrang Zhang, Beijing Institute of Technology

TIME: 2:10 PM-3:10 PM

ROOM: Ayres 113

In this talk, I will introduce two equations: viscous stochastic primitive equations and inviscid stochastic scalar conservation laws. The ergodic theory and large deviation principles for the above two models will be presented.

MINIMAL SURFACES SEMINAR

TITLE: Colding-Minicozzi Paper 2-part 1

SPEAKER: Ryan Unger, University of Tennessee

TIME: 4:00 PM-5:30 PM

ROOM: Ayres 121

We will show curvature estimates on embedded minimal disks with bounded total curvature.

**Wednesday, 9/12**

ANALYSIS SEMINAR

TITLE: TBD

SPEAKER: TBD

TIME: 2:30 PM-3:20 PM

ROOM: Ayres 113

**Friday, 9/14**

MATH BIOLOGY SEMINAR

TOPIC: Ecosystems Modeling

LEADER: Jessica Beck, University of Tennessee (EEB graduate student)

TIME: 10:10 AM-11:00 AM

ROOM: Ayres 401

*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
AT
utk DOT edu *

**Past notices:**