2025
UPCOMING Jun 23 · National Sun Yat-sen University
Beyond the classification theorem of Cameron, Goethals, Seidel and Shult
The 26th Conference of the International Linear Algebra Society
Below is a list of talks I have given, as well as those I will give in the future, in reverse chronological order.
2024
Nov 15 · Arizona State University
Exploring Lean 4
Research Innovation in the Mathematical Sciences Seminar
Nov 1 · Duke University
Beyond the classification theorem of Cameron, Goethals, Seidel and Shult
Combinatorics Seminar
Oct 27 · University of California, Riverside
Beyond the classification theorem of Cameron, Goethals, Seidel and Shult
AMS Fall Western Sectional Meeting
Oct 26 · University of California, Riverside
Rainbow odd cycles
AMS Fall Western Sectional Meeting
Oct 11 · Louisiana State University
Beyond the classification theorem of Cameron, Goethals, Seidel and Shult
Combinatorics Seminar
Jun 21 · L'Institut de Recherche en Informatique Fondamentale
Rainbow odd cycles
Workshop on Topological Combinatorics
2023
Aug 21 · Virtual (Zoom)
Forbidden subgraphs and spherical two-distance sets
Soochow University Summer School on Combinatorics
Jul 22 · Virtual (Zoom)
Forbidden subgraphs and spherical two-distance sets
Hebei Normal University Seminar
Jul 13 · Luoyang, Henan, China
Extremal Problems in Discrete Geometry
Workshop on Graph Theory and Combinatorics
Jun 8 · University of Winnipeg
Rainbow odd cycles
Canadian Discrete and Algorithmic Mathematics
Mar 23 · Virtual (Zoom)
Forbidden subgraphs and spherical two-distance sets
Auburn University DMS Combinatorics Seminar
Mar 18 · Georgia Institute of Technology
Rainbow odd cycles
AMS Spring Southeastern Sectional Meeting
2022
Nov 2 · Virtual (Zoom)
Forbidden subgraphs and spherical two-distance sets
National University of Singapore Combinatorics and Graph Theory Seminar
Oct 23 · University of Utah
Forbidden subgraphs and spherical two-distance sets
AMS Fall Western Sectional Meeting
Oct 16 · University of Tennessee at Chattanooga
Eigenvalues, forbidden subgraphs, and Ramsey
AMS Fall Southeastern Sectional Meeting
Jul 7 · Virtual (Zoom)
Rainbow structures via topological methods
Copenhagen-Jerusalem Combinatorics Seminar
Jun 21 · Virtual (Zoom)
Forbidden subgraphs and spherical two-distance sets
Codes and Expansions Seminar
Jun 15 · Carnegie Mellon University
Eigenvalues, forbidden subgraphs, and Ramsey
SIAM Conference on Discrete Mathematics
Apr 13 · Arizona State University
Extremal Problems in Discrete Geometry
Bridge to Research Seminar
Apr 1 · Emory University
Forbidden subgraphs and spherical two-distance sets
Discrete Math Seminar
2021
Jul 27 · Virtual (VooV)
Forbidden subgraphs and spherical two-distance sets
Hua Loo-Keng Young Mathematicians Forum
Jul 26 · Virtual (VooV)
Eigenvalue multiplicity and equiangular lines
Hua Loo-Keng Young Mathematicians Forum
Jul 23 · Virtual (VooV)
Extremal Problems in Discrete Geometry
Hua Loo-Keng Young Mathematicians Forum
Jul 20 · Virtual (Zoom)
Spherical two-distance sets and spectral theory of signed graphs
SIAM Conference on Discrete Mathematics
Jul 2 · Virtual (Zoom)
Forbidden subgraphs and spherical two-distance sets
Moscow Conference on Combinatorics and Applications
2020
Oct 10 · Virtual (Zoom)
Negligible obstructions and Turán exponents
Fall Southeastern Sectional Meeting
Aug 13 · Virtual (Zoom)
Negligible obstructions and Turán exponents
Shanghai Center for Mathematical Sciences Combinatorics Seminar
Jul 9 · Virtual (Zoom)
Rainbow odd cycles
Combinatorial Structures and Processes Seminar on Topological Combinatorics
Jul 3 · Virtual (Webex)
Spherical two-distance sets and spectral theory of signed graphs
National Taiwan University Seminar on Combinatorics
Mar 26 · Virtual (Zoom)
Equiangular lines with a fixed angle
University of Delaware Discrete Mathematics Seminar
Jan 30 · University of Massachusetts Amherst
Equiangular lines with a fixed angle
Discrete Mathematics Seminar
Jan 14 · Georgia Institute of Technology
Extremal Problems in Discrete Geometry
Job Candidate Talk
2019
Dec 18 · Technion – Israel Institute of Technology
Equiangular lines with a fixed angle
Combinatorics Seminar
Nov 18 · Iowa State University
Equiangular lines with a fixed angle
Discrete Mathematics Seminar
Oct 15 · University of Illinois at Urbana-Champaign
Equiangular lines with a fixed angle
Graph Theory and Combinatorics Seminar
Oct 14 · University of Illinois at Chicago
Equiangular lines with a fixed angle
Combinatorics and Probability Seminar
Jun 22 · Anhui University
Forbidden subgraphs and equiangular lines
The 18th AHU–USTC Joint Seminar
Jun 19 · University of Science and Technology of China
Cooperative colorings
Combinatorics and Graph Theory Seminar
Jun 12 · Tsinghua University
Rainbow structures via algebraic topology
The 8th International Congress of Chinese Mathematicians
Jun 5 · Shanghai Center for Mathematical Sciences
Rainbow structures via algebraic topology
Discrete Mathematics Seminar
2018
Sep 5 · Massachusetts Institute of Technology
Spherical Tarski's plank problem
Combinatorics Seminar
Aug 13 · Capital Normal University
Forbidden subgraphs and equiangular lines
Combinatorics Workshop
Jun 5 · University of Colorado Denver
Forbidden subgraphs and equiangular lines
SIAM Conference on Discrete Mathematics
May 23 · Ariel University
Forbidden subgraphs and equiangular lines
Computer Science Seminar
Mar 20 · Ein Gedi
Spherical Tarski's plank problem
ERC Workshop: Geometric Transversal and Epsilon-Nets
Jan 21 · Technion – Israel Institute of Technology
On spherical Tarski's plank problem
Nonlinear Analysis and Optimization Seminar
2017
Dec 12 · ORT Braude College
Finding the closest pair of points on two polyhedra
Applied Mathematics Seminar
Aug 20 · Technion – Israel Institute of Technology
Finding the closest pair of points on two polyhedra
Nonlinear Analysis and Optimization Seminar
May 28 · Rimonim Palm Beach, Akko
On spherical Tarski's plank problem
Israel Mathematical Union 2017 Annual Meeting
Apr 5 · Technion – Israel Institute of Technology
On spherical Tarski's plank problem
Combinatorics Gathering
Mar 6 · Hebrew University of Jerusalem
Relations between Tverberg points and central points
Combinatorics Seminar
2016
Aug 23 · Technion – Israel Institute of Technology
Bipartite algebraic graphs without quadrilaterals
Hungarian–Israeli Combinatorial Days
Mar 1 · Carnegie Mellon University
Random algebraic method and its application
Graduate Student Seminar
2015
Nov 17 · Carnegie Mellon University
Classification of bipartite algebraic graphs without quadrilaterals
Graduate Student Seminar
Oct 13 · Carnegie Mellon University
Why elliptic curves are called elliptic?
Graduate Student Seminar
Jul 30 · Carnegie Mellon University
Topological method for the colored Bárány's theorem
Random Structures and Algorithms
Jun 18 · Simon Fraser University
A bound on Turán number for cycles of even length
Connections in Discrete Mathematics
Apr 9 · Carnegie Mellon University
Hardy–Littlewood circle method and Waring's problem
Graduate Student Seminar
Feb 19 · Carnegie Mellon University
The best card trick
Graduate Student Seminar
Jan 15 · Carnegie Mellon University
An expedition to the world of p-adic numbers
Graduate Student Seminar
2014
Nov 4 · Carnegie Mellon University
Introduction to Diophantine approximation
Graduate Student Seminar
Sep 23 · Carnegie Mellon University
A taste of topological methods in combinatorics
Graduate Student Seminar
2012
Nov 8 · Carnegie Mellon University
Computability and busy beaver
Math Club
Oct 29 – Nov 19 · Carnegie Mellon University
Many models for unstable first-order theory (4 talks)
Model Theory Seminar