### TBA by Prasad Tetali

- Series
- High Dimensional Seminar
- Time
- Wednesday, April 15, 2020 - 15:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Prasad Tetali – GaTech

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- Series
- High Dimensional Seminar
- Time
- Wednesday, April 15, 2020 - 15:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Prasad Tetali – GaTech

- Series
- Geometry Topology Student Seminar
- Time
- Wednesday, April 15, 2020 - 14:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Sally Collins – Georgia Tech

- Series
- Mathematical Biology Seminar
- Time
- Wednesday, April 15, 2020 - 11:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 6
- Speaker
- Prof. Jun Xie – Department of Statistics, Purdue University – junxie@purdue.edu

TBA

- Series
- Algebra Seminar
- Time
- Monday, April 13, 2020 - 15:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 005
- Speaker
- Cvetelina Hill – Georgia Tech – cvetelina.hill@gatech.edu

In this talk we will explore the interplay between tropical convexity and its classical counterpart. In particular, we will focus on the tropical convex hull of convex sets and polyhedral complexes. We give a vertex description of the tropical convex hull of a line segment and of a ray in Rn/R**1** and show that tropical convex hull and classical convex hull commute in R3/R**1**. Finally, we prove results on the dimension of tropical convex fans and give an upper bound on the dimension of the tropical convex hull of tropical curves under certain hypothesis.

- Series
- Geometry Topology Seminar
- Time
- Monday, April 13, 2020 - 14:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Maggie Miller – Princeton University – maggiem@math.princeton.edu

- Series
- Geometry Topology Seminar Pre-talk
- Time
- Monday, April 13, 2020 - 12:45 for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Maggie Miller – Princeton University – maggiem@math.princeton.edu

- Series
- Stochastics Seminar
- Time
- Thursday, April 9, 2020 - 15:05 for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Subhroshekhar Ghosh – National University of Singapore

- Series
- Graph Theory Seminar
- Time
- Thursday, April 9, 2020 - 14:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 005
- Speaker
- Zhiyu Wang – University of South Carolina

An edge-colored graph $G$ is called \textit{rainbow} if every edge of $G$ receives a different color. The \textit{anti-Ramsey} number of $t$ edge-disjoint rainbow spanning trees, denoted by $r(n,t)$, is defined as the maximum number of colors in an edge-coloring of $K_n$ containing no $t$ edge-disjoint rainbow spanning trees. Jahanbekam and West [{\em J. Graph Theory, 2016}] conjectured that for any fixed $t$, $r(n,t)=\binom{n-2}{2}+t$ whenever $n\geq 2t+2 \geq 6$. We show their conjecture is true and also determine $r(n,t)$ when $n = 2t+1$. Together with previous results, this gives the anti-Ramsey number of $t$ edge-disjoint rainbow spanning trees for all values of $n$ and $t$. Joint work with Linyuan Lu.

- Series
- High Dimensional Seminar
- Time
- Wednesday, April 8, 2020 - 15:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Vlad Yaskin – University of Alberta

Tba

- Series
- Geometry Topology Student Seminar
- Time
- Wednesday, April 8, 2020 - 14:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker

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