activity
20122021
most citedA simple proof of the Zeilberger-Bressoud q-Dyson theorem

22 citations · 46 across the 9 of their papers we have counts for

collaborators

13 papers

math.CO2021

Multicolor Turán numbers

András Imolay, János Karl, Zoltán Lóránt Nagy +1

We consider a natural generalisation of Turán's forbidden subgraph problem and the Ruzsa-Szemerédi problem by studying the maximum number of edge-disjoint copies of a f…

math.CO2021

A note on internal partitions: the -regular case and beyond

Pál Bärnkopf, Zoltán Lóránt Nagy, Zoltán Paulovics

An internal or friendly partition of a graph is a partition of the vertex set into two nonempty sets so that every vertex has at least as many neighbours in its own class as in the…

math.CO2021

Short minimal codes and covering codes via strong blocking sets in projective spaces

Tamás Héger, Zoltán Lóránt Nagy

Minimal linear codes are in one-to-one correspondence with special types of blocking sets of projective spaces over a finite field, which are called strong or cutting blocking sets…

math.CO2021★ 1 cited

Generalized Outerplanar Turán numbers and maximum number of k-vertex subtrees

Dávid Matolcsi, Zoltán Lóránt Nagy

We prove an asymptotic result on the maximum number of k-vertex subtrees in binary trees of given order. This problem turns out to be equivalent to determine the maximum number of…

math.CO2020

Unified approach to the generalized Turán problem and supersaturation

Dániel Gerbner, Zoltán Lóránt Nagy, Máté Vizer

In this paper we introduce a unifying approach to the generalized Turán problem and supersaturation results in graph theory. The supersaturation-extremal function $satex(n, F : m,…

math.CO2020★ 1 cited

Coloring linear hypergraphs: the Erdős-Faber-Lovász conjecture and the Combinatorial Nullstellensatz

Oliver Janzer, Zoltán Lóránt Nagy

The long-standing Erdős-Faber-Lovász conjecture states that every -uniform linear hypergaph with edges has a proper vertex-coloring using colors. In this paper we propos…

math.CO2020

On the Turán number of the blow-up of the hexagon

Oliver Janzer, Abhishek Methuku, Zoltán Lóránt Nagy

The -blowup of a graph , denoted by , is the graph obtained by replacing the vertices and edges of with independent sets of size and copies of , respec…

math.CO2019

Spreading linear triple systems and expander triple systems

Zoltán L. Blázsik, Zoltán Lóránt Nagy

The existence of Steiner triple systems STS(n) of order n containing no nontrivial subsystem is well known for every admissible n. We generalize this result in two ways. First we d…

math.CO2019★ 2 cited

The Turán number of blow-ups of trees

Andrzej Grzesik, Oliver Janzer, Zoltán Lóránt Nagy

A conjecture of Erdős from 1967 asserts that any graph on vertices which does not contain a fixed -degenerate bipartite graph has at most edges, where i…

math.CO2019

Triangle areas in line arrangements

Gábor Damásdi, Leonardo Martínez-Sandoval, Dániel T. Nagy +1

A widely investigated subject in combinatorial geometry, originated from Erdős, is the following. Given a point set of cardinality in the plane, how can we describe the dis…

math.CO2017

Supersaturation of : from Zarankiewicz towards Erdős-Simonovits-Sidorenko

Zoltán Lóránt Nagy

For a positive integer , a graph and a bipartite graph let denote the number of copies of in , and let denote the minim…

math.CO2013★ 20 cited

A new approach to constant term identities and Selberg-type integrals

Gyula Károlyi, Zoltán Lóránt Nagy, Fedor Petrov +1

Selberg-type integrals that can be turned into constant term identities for Laurent polynomials arise naturally in conjunction with random matrix models in statistical mechanics. B…

math.CO2012★ 22 cited

A simple proof of the Zeilberger-Bressoud q-Dyson theorem

Gyula Károlyi, Zoltán Lóránt Nagy

As an application of the Combinatorial Nullstellensatz, we give a short polynomial proof of the q-analogue of Dyson's conjecture formulated by Andrews and first proved by Zeilberge…