Previous

March 23rd, 2021. Codes and Expansions Seminar, Virtual (Zoom)

Spherical two-distance sets and spectral theory of signed graphs announcement video slides arxiv

October 10th, 2020. Special Session on Structural and Extremal Graph Theory, Fall Southeastern Sectional Meeting (Zoom)

Negligible obstructions and Turán exponents announcement slides arxiv

August 13th, 2020. SCMS Combinatorics Seminar, Shanghai Center for Mathematical Sciences (Zoom)

Negligible obstructions and Turán exponents announcement video slides arxiv

July 9th, 2020. Seminar on topological combinatorics, Combinatorial Structures and Processes (Zoom)

Rainbow odd cycles announcement slides arxiv

July 3rd, 2020. Seminar on Combinatorics, National Taiwan University (Webex)

Spherical two-distance sets and spectral theory of signed graphs announcement slides arxiv

March 26th, 2020. Discrete Mathematics Seminar, University of Delaware

Equiangular lines with a fixed angle announcement slides arxiv

March 10th, 2020. Combinatorics Seminar, Brandeis University

The colorful world of rainbow sets announcement arxiv

February 10th, 2020. Job Candidate Talk, Arizona State University

Extremal Problems in Discrete Geometry announcement slides

February 4th, 2020. Job Candidate Talk, McGill University

Extremal Problems in Discrete Geometry announcement slides

January 30th, 2020. Discrete Mathematics Seminar, University of Massachusetts Amherst

Equiangular lines with a fixed angle announcement arxiv

January 14th, 2020. Job Candidate Talk, Georgia Institute of Technology

Extremal Problems in Discrete Geometry announcement slides

December 18th, 2019. Combinatorics Seminar, Technion – Israel Institute of Technology

Equiangular lines with a fixed angle announcement arxiv

November 18th, 2019. Discrete Mathematics Seminar, Iowa State University

Equiangular lines with a fixed angle announcement video arxiv

October 15th, 2019. Graph Theory and Combinatorics Seminar, University of Illinois at Urbana-Champaign

Equiangular lines with a fixed angle announcement arxiv

October 14th, 2019. Combinatorics and Probability Seminar, University of Illinois at Chicago

Equiangular lines with a fixed angle announcement arxiv

July 22nd, 2019. Topological Methods in Combinatorics, Charles University

Colored Bárány's theorem announcement slides arxiv

July 5th, 2019. Combinatorics Seminar, Shanghai Jiaotong University

Spectral radius: local and global announcement arxiv

June 22nd, 2019. The 18th AHU–USTC Joint Seminar, Anhui University

Forbidden subgraphs and equiangular lines announcement arxiv

June 19th, 2019. Combinatorics and Graph Theory Seminar, University of Science and Technology of China

Cooperative colorings announcement arxiv

June 12th, 2019. The 8th International Congress of Chinese Mathematicians, Tsinghua University

Rainbow structures via algebraic topology announcement slides arxiv

June 5th, 2019. Discrete Mathematics Seminar, Shanghai Center for Mathematical Sciences

Rainbow structures via algebraic topology announcement arxiv

October 19th, 2018. Combinatorics Seminar, Emory University

Rainbow fractional matchings announcement slides arxiv

September 5th, 2018. Combinatorics Seminar, Massachusetts Institute of Technology

Spherical Tarski's plank problem announcement slides arxiv

August 13th, 2018. Combinatorics Workshop, Capital Normal University

Forbidden subgraphs and equiangular lines (in Chinese) arxiv

August 11th, 2018. Combinatorics Workshop, Capital Normal University

Spherical Tarski's plank problem (in Chinese) arxiv

June 5th, 2018. SIAM Conference on Discrete Mathematics, University of Colorado Denver

Forbidden subgraphs and equiangular lines announcement slides arxiv

May 23rd, 2018. Computer Science Seminar, Ariel University

Forbidden subgraphs and equiangular lines announcement

May 17th, 2018. ACO Seminar, Carnegie Mellon University

Rainbow fractional matchings announcement arxiv

April 25th, 2018. Combinatorics Seminar, Ben Gurion University

How to guess an n-digit number announcement arxiv

April 24th, 2018. Research Seminar in Combinatorics, Tel Aviv University

How to guess an n-digit number announcement arxiv

March 20th, 2018. ERC Workshop: Geometric Transversal and Epsilon-Nets, Ein Gedi

Spherical Tarski's plank problem arxiv

March 16th, 2018. School Colloquim, Peking University

Spherical Tarski's plank problem (in Chinese) announcement slides arxiv

March 14th, 2018. An Hour of Maths, Peking University

Five miniatures of linear algebra (in Chinese) slides

January 21st, 2018. Nonlinear Analysis and Optimization Seminar, Technion – Israel Institute of Technology

On spherical Tarski's plank problem announcement arxiv

December 12th, 2017. Applied Mathematics Seminar, ORT Braude College

Finding the closest pair of points on two polyhedra announcement arxiv

August 20th, 2017. Nonlinear Analysis and Optimization Seminar, Technion – Israel Institute of Technology

Finding the closest pair of points on two polyhedra announcement arxiv

May 28th, 2017. Israel Mathematical Union 2017 Annual Meeting, Rimonim Palm Beach, Akko

On spherical Tarski's plank problem announcement slides arxiv

April 5th, 2017. Combinatorics Gathering, Technion – Israel Institute of Technology

On spherical Tarski's plank problem arxiv

March 6th, 2017. Combinatorics Seminar, Hebrew University of Jerusalem

Relations between Tverberg points and central points announcement

August 23rd, 2016. Hungarian–Israeli Combinatorial Days, Technion – Israel Institute of Technology

Bipartite algebraic graphs without quadrilaterals announcement slides arxiv

April 19th, 2016. Gradaute Student Seminar, Carnegie Mellon University

Races beyond Riemann hypothesis announcement video

March 1st, 2016. Graduate Student Seminar, Carnegie Mellon University

Random algebraic method and its application announcement video

November 17th, 2015. Graduate Student Seminar, Carnegie Mellon University

Classification of bipartite algebraic graphs without quadrilaterals announcement

October 13th, 2015. Graduate Student Seminar, Carnegie Mellon University

Why elliptic curves are called elliptic? announcement

July 30th, 2015. Random Structures and Algorithms, Carnegie Mellon University

Topological method for the colored Bárány’s theorem announcement slides arxiv

June 18th, 2015. Connections in Discrete Mathematics, Simon Fraser University

A bound on Turán number for cycles of even length announcement slides arxiv

April 9th, 2015. Graduate Student Seminar, Carnegie Mellon University

Hardy–Littlewood circle method and Waring's problem announcement

February 19th, 2015. Graduate Student Seminar, Carnegie Mellon University

The best card trick announcement

January 15th, 2015. Graduate Student Seminar, Carnegie Mellon University

An expedition to the world of p-adic numbers announcement blog

November 4th, 2014. Gradaute Student Seminar, Carnegie Mellon University

Introduction to Diophantine approximation announcement blog

September 23rd, 2014. Gradaute Student Seminar, Carnegie Mellon University

A taste of topological methods in combinatorics announcement

November 8th, 2012. Math Club, Carnegie Mellon University

Computability and busy beaver

October 29th, 2012. Model Theory Seminar, Carnegie Mellon University

Many models for unstable first-order theory (4 talks) announcement