scholarly journals Domination and Eternal Domination of Jahangir Graph

2019 ◽  
Vol 09 (03) ◽  
pp. 68-81
Author(s):  
Ramy Shaheen ◽  
Mohammad Assaad ◽  
Ali Kassem
Keyword(s):  
2017 ◽  
Vol 855 ◽  
pp. 012037
Author(s):  
Mania Roswitha ◽  
Anna Amanda ◽  
Titin Sri Martini ◽  
Bowo Winarno
Keyword(s):  

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Ramy Shaheen ◽  
Mohammad Assaad ◽  
Ali Kassem

An eternal dominating set of a graph G is a set of guards distributed on the vertices of a dominating set so that each vertex can be occupied by one guard only. These guards can defend any infinite series of attacks, an attack is defended by moving one guard along an edge from its position to the attacked vertex. We consider the “all guards move” of the eternal dominating set problem, in which one guard has to move to the attacked vertex, and all the remaining guards are allowed to move to an adjacent vertex or stay in their current positions after each attack in order to form a dominating set on the graph and at each step can be moved after each attack. The “all guards move model” is called the m -eternal domination model. The size of the smallest m -eternal dominating set is called the m -eternal domination number and is denoted by γ m ∞ G . In this paper, we find the domination number of Jahangir graph J s , m for s ≡ 1 , 2   mod   3 , and the m -eternal domination numbers of J s , m for s , m are arbitraries.


A sequence of instructions which can help to solve a problem is called an algorithm. The reason for composing an algorithm is to reduce the timespan and understanding the solution of problems in simple way. In this paper, vertex prime valuation of the Jahangir graph Jn,m for n ≥ 2, m ≥ 3 and generalized Theta graph θ (l1 , l 2 , l 3 , ..., ln) has been investigated by using algorithms .We discuss vertex prime valuation of some graph operations on both graphs viz. Fusion, Switching and Duplication, Disjoint union and Path union.


2020 ◽  
Vol 2020 ◽  
pp. 1-4
Author(s):  
Ramy Shaheen ◽  
Ziad Kanaya ◽  
Khaled Alshehada

Let G = V , E be a graph, and two players Alice and Bob alternate turns coloring the vertices of the graph G a proper coloring where no two adjacent vertices are signed with the same color. Alice's goal is to color the set of vertices using the minimum number of colors, which is called game chromatic number and is denoted by χ g G , while Bob's goal is to prevent Alice's goal. In this paper, we investigate the game chromatic number χ g G of Generalized Petersen Graphs G P n , k for k ≥ 3 and arbitrary n , n -Crossed Prism Graph, and Jahangir Graph J n , m .


2021 ◽  
Author(s):  
Tri Atmojo Kusmayadi ◽  
Nugroho Arif Sudibyo
Keyword(s):  

2021 ◽  
Vol 24 (2) ◽  
pp. 427-438
Author(s):  
Deeba Afzal ◽  
Samia Ali ◽  
Farkhanda Afzal ◽  
Murat Cancan ◽  
Süleyman Ediz ◽  
...  

Author(s):  
Mehdi Alaeiyan ◽  
◽  
Muhammad S. Sardar ◽  
Sohail Zafar ◽  
Zohaib Zahid ◽  
...  

2018 ◽  
Vol 7 (4.10) ◽  
pp. 389
Author(s):  
Anantha Lakshmi. ◽  
Jayalakshmi. K ◽  
Madhavi T

The paper investigates prime labeling of Jahangir graph Jn,m   for n ≥ 2, m ≥ 3 provided that nm is even. We discuss prime labeling of some graph operations viz. Fusion, Switching and Duplication to prove that the Fusion of two vertices v1 and vk where k is odd in a Jahangir graph Jn,m results to prime graph provided that the product nm is even and is relatively prime to k. The Fusion of two vertices vnm + 1 and vk for any k in Jn, m is prime. The switching of vk in the cycle Cnm of the Jahangir graph Jn,m  is a prime graph provided that nm+1 is a prime number and the switching of vnm+1 in Jn, m is also a prime graph .Duplicating of vk, where k is odd integer and nm + 2 is relatively prime to k,k+2 in Jn,m is a prime graph.  


Sign in / Sign up

Export Citation Format

Share Document