activity
20162022
most citedCounting graph orientations with no directed triangles

5 citations · 5 across the 4 of their papers we have counts for

collaborators

15 papers

math.CO2022

On the anti-Ramsey threshold for non-balanced graphs

Pedro Araújo, Taísa Martins, Letícia Mattos +3

For graphs and , we write if any proper edge-coloring of contains a rainbow copy of , i.e., a copy where no color appear…

math.CO2021

Counting orientations of graphs with no strongly connected tournaments

Fábio Botler, Carlos Hoppen, Guilherme Oliveira Mota

Let be the maximum number of orientations of an -vertex graph in which no copy of is strongly connected. For all integers , where or $k…

math.CO2020

Factors in randomly perturbed hypergraphs

Yulin Chang, Jie Han, Yoshiharu Kohayakawa +2

We determine, up to a multiplicative constant, the optimal number of random edges that need to be added to a -graph with minimum vertex degree to ensure an -…

math.CO2020

Covering -edge-coloured random graphs with monochromatic trees

Yoshiharu Kohayakawa, Walner Mendonça, Guilherme Oliveira Mota +1

We investigate the problem of determining how many monochromatic trees are necessary to cover the vertices of an edge-coloured random graph. More precisely, we show that for $p\gg…

math.CO2020

Anti-Ramsey threshold of cycles

Gabriel Ferreira Barros, Bruno Pasqualotto Cavalar, Guilherme Oliveira Mota +1

For graphs and , let denote the property that for every proper edge colouring of there is a rainbow copy of in . Exte…

math.CO20205 cited

Counting graph orientations with no directed triangles

Pedro Araújo, Fábio Botler, Guilherme Oliveira Mota

Alon and Yuster proved that the number of orientations of any -vertex graph in which every is transitively oriented is at most for