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

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

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

Negligible obstructions and Turán exponents announcement slides arxiv

Negligible obstructions and Turán exponents announcement video slides arxiv

Rainbow odd cycles announcement slides arxiv

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

Equiangular lines with a fixed angle announcement slides arxiv

The colorful world of rainbow sets announcement arxiv

Extremal Problems in Discrete Geometry announcement slides

Extremal Problems in Discrete Geometry announcement slides

Equiangular lines with a fixed angle announcement arxiv

Extremal Problems in Discrete Geometry announcement slides

Equiangular lines with a fixed angle announcement arxiv

Equiangular lines with a fixed angle announcement video arxiv

Equiangular lines with a fixed angle announcement arxiv

Equiangular lines with a fixed angle announcement arxiv

Colored Bárány's theorem announcement slides arxiv

Spectral radius: local and global announcement arxiv

Forbidden subgraphs and equiangular lines announcement arxiv

Cooperative colorings announcement arxiv

Rainbow structures via algebraic topology announcement slides arxiv

Rainbow structures via algebraic topology announcement arxiv

Rainbow fractional matchings announcement slides arxiv

Spherical Tarski's plank problem announcement slides arxiv

Forbidden subgraphs and equiangular lines (in Chinese) arxiv

Spherical Tarski's plank problem (in Chinese) arxiv

Forbidden subgraphs and equiangular lines announcement slides arxiv

Forbidden subgraphs and equiangular lines announcement

Rainbow fractional matchings announcement arxiv

How to guess an n-digit number announcement arxiv

How to guess an n-digit number announcement arxiv

Spherical Tarski's plank problem arxiv

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

Five miniatures of linear algebra (in Chinese) slides

On spherical Tarski's plank problem announcement arxiv

Finding the closest pair of points on two polyhedra announcement arxiv

Finding the closest pair of points on two polyhedra announcement arxiv

On spherical Tarski's plank problem announcement slides arxiv

On spherical Tarski's plank problem arxiv

Relations between Tverberg points and central points announcement

Bipartite algebraic graphs without quadrilaterals announcement slides arxiv

Races beyond Riemann hypothesis announcement video

Random algebraic method and its application announcement video

Classification of bipartite algebraic graphs without quadrilaterals announcement

Why elliptic curves are called elliptic? announcement

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

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

Hardy–Littlewood circle method and Waring's problem announcement

The best card trick announcement

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

Introduction to Diophantine approximation announcement blog

A taste of topological methods in combinatorics announcement

Computability and busy beaver

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