R. Javadi

activity

20122022

most citedLocal Clique Covering of Graphs

1 citations · 1 across the 8 of their papers we have counts for

collaborators

11 papers

cs.DS2024

A High-Performance External Validity Index for Clustering with a Large Number of Clusters

Mohammad Yasin Karbasian, Ramin Javadi

This paper introduces the Stable Matching Based Pairing (SMBP) algorithm, a high-performance external validity index for clustering evaluation in large-scale datasets with a large…

math.CO2022

The Game of Cops and Robber on (Claw, Even-hole)-free Graphs

Ramin Javadi, Ali Momeni

In this paper, we study the game of cops and robber on the class of graphs with no even hole (induced cycle of even length) and claw (a star with three leaves). The cop number of a…

math.CO2021

On a Conjecture of Erd\H os on Size Ramsey Number of Star Forests

Akbar Davoodi, Ramin Javadi, Azam Kamranian +1

Given graphs $F_{1}, F_{2}$ and $G$ , we say that $G$ is Ramsey for $(F_{1}, F_{2})$ and we write $G \to (F_{1}, F_{2})$ , if for every edge coloring of $G$ by red and blue, there is eithe…

math.CO2021

Multicolor Size-Ramsey Number of Cycles

Ramin Javadi, Meysam Miralaei

Given a positive integer $r$ , the $r$ -color size-Ramsey number of a graph $H$ , denoted by $R^(H, r)$ , is the smallest integer $m$ for which there exists a graph $ G…

math.CO2019

On the packing for triples

Ramin Javadi, Ehsan Poorhadi, Farshad Fallah

For positive integers $n \geq k \geq t$ , a collection $B$ of $k$ -subsets of an $n$ -set $X$ is called a $t$ -packing if every $t$ -subset of $X$ appears in at most one s…

math.CO2018

The spectrum for large sets of $(3, λ)$ -GDDs of type $g^{u}$

X. Niu, H. Cao, R. Javadi

In this paper, we completely solve the existence of large sets of $(3, λ)$ -GDDs of type $g^{u}$ and the existence of a simple $(3, λ)$ -GDD of type $g^{u}$ .