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20192026
most citedSuperpolynomial Lower Bounds for Learning One-Layer Neural Networks using Gradient Descent

9 citations · 9 across the 8 of their papers we have counts for

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math.CO2026

Set mappings for general graphs

Lior Gishboliner, Zhihan Jin, Benny Sudakov

The study of extremal problems for set mappings has a long history. It was introduced in 1958 by Erdős and Hajnal, who considered the case of cliques in graphs and hypergraphs. Rec…

math.CO2025

Sunflowers and Ramsey problems for restricted intersections

Barnabás Janzer, Zhihan Jin, Benny Sudakov +1

Extremal problems on set systems with restricted intersections have been an important part of combinatorics in the last 70 years. In this paper, we study the following Ramsey versi…

math.CO2024

The Helly number of Hamming balls and related problems

Noga Alon, Zhihan Jin, Benny Sudakov

We prove the following variant of Helly's classical theorem for Hamming balls with a bounded radius. For and any (finite or infinite) set , if in a family of Hamming balls…

math.CO2023

Difference-Isomorphic Graph Families

Lior Gishboliner, Zhihan Jin, Benny Sudakov

Many well-studied problems in extremal combinatorics deal with the maximum possible size of a family of objects in which every pair of objects satisfies a given restriction. One pr…

math.CO2023

Extremal, enumerative and probabilistic results on ordered hypergraph matchings

Michael Anastos, Zhihan Jin, Matthew Kwan +1

An ordered -matching is an -uniform hypergraph matching equipped with an ordering on its vertices. These objects can be viewed as natural generalisations of -dimensional o…

math.CO2023

Ramsey problems for monotone paths in graphs and hypergraphs

Lior Gishboliner, Zhihan Jin, Benny Sudakov

The study of ordered Ramsey numbers of monotone paths for graphs and hypergraphs has a long history, going back to the celebrated work by Erdős and Szekeres in the early days of Ra…

math.CO2023

Exponential Erdős-Szekeres theorem for matrices

Recep Altar Çiçeksiz, Zhihan Jin, Eero Räty +1

In 1993, Fishburn and Graham established the following qualitative extension of the classical Erdős-Szekeres theorem. If is sufficiently large with respect to , then any $N\…

math.CO2023

The Minimum Degree Removal Lemma Thresholds

Lior Gishboliner, Zhihan Jin, Benny Sudakov

The graph removal lemma is a fundamental result in extremal graph theory which says that for every fixed graph and , if an -vertex graph contains $\vare…

math.CO2022

Ramsey numbers of semi-algebraic and semi-linear hypergraphs

Zhihan Jin, István Tomon

An -uniform hypergraph is semi-algebraic of complexity if the vertices of correspond to points in , and the edges of are determi…