activity
20202026
collaborators

7 papers

math.CO2026

Asymptotic Bounds for Online Ramsey Numbers of Stars versus Long Paths and Cycles

Sam Beilis, Israel R. Curbelo, Elizabeth R. Koizumi

The online Ramsey game for graphs and is played on the infinite complete graph . In each round, Builder chooses an edge, and Painter colors it red or blue. Th…

math.CO2026

On the asymptotic behavior of online Ramsey numbers for stars, paths and cycles

Sam Beilis, Israel R. Curbelo

The online Ramsey game for graphs and is played on the infinite complete graph . Each round, Builder chooses an edge, and Painter colors it red or blue. The o…

cs.DS2024

Online coloring of short interval graphs and two-count interval graphs

Israel R. Curbelo

We study the online coloring of -interval graphs, which are interval graphs with interval lengths in and 2-count interval graphs, which are interval graphs that require…

math.CO2024

On the on-line coloring of unit interval graphs with proper interval representation

Israel R. Curbelo, Hannah R. Malko

We define the problem as a two-player game between Algorithm and Builder. The game is played in rounds. Each round, Builder presents an interval that is neither contained in nor co…

math.CO2021

Improved lower bounds on the on-line chain partitioning of posets of bounded dimension

Csaba Biró, Israel R. Curbelo

An on-line chain partitioning algorithm receives a poset, one element at a time, and irrevocably assigns the element to one of the chains. Over 30 years ago, Szemerédi proved that…

math.CO2021

Improved lower bound on the on-line chain partitioning of semi-orders with representation

Csaba Biró, Israel R. Curbelo

An on-line chain partitioning algorithm receives a poset, one element at a time, and irrevocably assigns the element to one of the chains in the partition. The on-line chain partit…

math.PR2020

Weak independence of events and the converse of the Borel--Cantelli Lemma

Csaba Biró, Israel R. Curbelo

The converse of the Borel-Cantelli Lemma states that if is a sequence of independent events such that , then almost surely infinitely man…