activity
20222026
most citedOn polynomial degree-boundedness

7 citations · 14 across the 18 of their papers we have counts for

collaborators

20 papers

math.CO2026

Hadwiger--Nelson Problem for Typical Norms

Noga Alon, Matija Bucić, James Davies

The classical Hadwiger-Nelson problem asks for the chromatic number of the unit distance graph of the Euclidean plane. Over the years, this problem has been considered for a variet…

math.CO2026

The uniform Turán density of the tetrahedron

Matija Bucić

We prove that the uniform Turán density of is equal to . Kielak, Král', Lamaison, Liu, Shu, and Wu have recently proved the same result using combinatorial methods…

math.CO2026

Long cycles in vertex transitive digraphs

Matija Bucić, Kevin Hendrey, Bojan Mohar +2

One of the most well-known conjectures concerning Hamiltonicity in graphs asserts that any sufficiently large connected vertex transitive graph contains a Hamilton cycle. In this f…

cs.DS2025

Disjoint Paths in Expanders in Deterministic Almost-Linear Time via Hypergraph Perfect Matching

Matija Bucić, Zhongtian He, Shang-En Huang +1

We design efficient deterministic algorithms for finding short edge-disjoint paths in expanders. Specifically, given an -vertex -edge expander of conductance and mini…

math.CO2025

On Graham's rearrangement conjecture over

Benjamin Bedert, Matija Bucić, Noah Kravitz +2

A sequence of elements of a group is called a valid ordering if the partial products are all distinct. A long-standi…

math.CO2025

On a Ramsey--Turán variant of Roth's theorem

Matija Bucić, Micha Christoph, Jaehoon Kim +2

A classical theorem of Roth states that the maximum size of a solution-free set of a homogeneous linear equation in is if and only if the sum of…

math.CO2025

Intersecting hypergraphs with large cover number

Matija Bucić, Vanshika Jain, Varun Sivashankar

In their famous 1974 paper introducing the local lemma, Erdős and Lovász posed a question-later referred by Erdős as one of his three favorite open problems: What is the minimum nu…

math.CO2025

The spanning tree spectrum: improved bounds and simple proofs

Noga Alon, Matija Bucić, Lior Gishboliner

The number of spanning trees of a graph , denoted , is a well studied graph parameter with numerous connections to other areas of mathematics. In a recent remarkable paper…

math.CO2025

Towards Graham's rearrangement conjecture via rainbow paths

Matija Bucić, Bryce Frederickson, Alp Müyesser +2

We study an old question in combinatorial group theory which can be traced back to a conjecture of Graham from 1971. Given a group , and some subset , is it possib…

math.CO2024

Equiangular lines via improved eigenvalue multiplicity

Igor Balla, Matija Bucić

A family of lines passing through the origin in an inner product space is said to be equiangular if every pair of lines defines the same angle. In 1973, Lemmens and Seidel raised w…

math.CO2024

Topological Minors in Typical Lifts

Matija Bucić, Micha Christoph, Alp Müyesser +1

An -lift of a graph is any graph obtained by replacing every vertex of with an independent set of size , and connecting every pair of two such independent sets…

math.CO2024★ 1 cited

Counting independent sets in structured graphs

Matija Bucić, Maria Chudnovsky, Julien Codsi

Counting independent sets in graphs and hypergraphs under a variety of restrictions is a classical question with a long history. It is the subject of the celebrated container metho…

math.CO2024

Equivalence between Erdős-Hajnal and polynomial Rödl and Nikiforov conjectures

Matija Bucić, Jacob Fox, Huy Tuan Pham

It is well-known that polynomial versions of theorems of Rödl and Nikiforov, as conjectured by Fox and Sudakov and Nguyen, Scott and Seymour imply the classical Erdős-Hajnal conjec…

math.CO2023

Geometric graphs with exponential chromatic number and arbitrary girth

Matija Bucić, James Davies

In 1975 Erdős initiated the study of the following very natural question. What can be said about the chromatic number of unit distance graphs in that have large girt…

math.CO2023★ 7 cited

On polynomial degree-boundedness

Romain Bourneuf, Matija Bucić, Linda Cook +1

We prove a conjecture of Bonamy, Bousquet, Pilipczuk, Rzążewski, Thomassé, and Walczak, that for every graph , there is a polynomial such that for every positive integer …

math.CO2023★ 3 cited

Essentially tight bounds for rainbow cycles in proper edge-colourings

Noga Alon, Matija Bucić, Lisa Sauermann +2

An edge-coloured graph is said to be rainbow if no colour appears more than once. Extremal problems involving rainbow objects have been a focus of much research over the last decad…

math.CO2023

The power of many colours

Noga Alon, Matija Bucić, Micha Christoph +1

A classical problem, due to Gerencsér and Gyárfás from 1967, asks how large a monochromatic connected component can we guarantee in any -edge colouring of ? We consider how…

math.CO2023★ 1 cited

Unit and distinct distances in typical norms

Noga Alon, Matija Bucić, Lisa Sauermann

Erdős' unit distance problem and Erdős' distinct distances problem are among the most classical and well-known open problems in discrete mathematics. They ask for the maximum numbe…

math.CO2023★ 2 cited

Induced subgraph density. I. A loglog step towards Erdos-Hajnal

Matija Bucić, Tung Nguyen, Alex Scott +1

In 1977, Erdős and Hajnal made the conjecture that, for every graph , there exists such that every -free graph has a clique or stable set of size at least ;…

math.CO2022

Towards the Erdős-Hajnal conjecture for -free graphs

Pablo Blanco, Matija Bucić

The Erdős-Hajnal conjecture is one of the most classical and well-known problems in extremal and structural combinatorics dating back to 1977. It asserts that in stark contrast to…