scholarly journals Forcing Total Outer Independent Edge Geodetic Number of a Graph

2021 ◽  
Vol 1947 (1) ◽  
pp. 012021
Author(s):  
P. Arul Paul Sudhahar ◽  
A. Ajin Deepa
Author(s):  
Ahmad T. Anaqreh ◽  
Boglárka G.-Tóth ◽  
Tamás Vinkó
Keyword(s):  

2012 ◽  
Vol 1 (2) ◽  
pp. 241-249 ◽  
Author(s):  
A. P. Santhakumaran ◽  
S. V. Ullas Chandran

2020 ◽  
Author(s):  
Deepa Mathew ◽  
S. Arul Amirtha Raja ◽  
Eddith Sarah Varghese ◽  
D. Antony Xavier
Keyword(s):  

Author(s):  
John J ◽  
Stalin D

Let  G = (V, E)  be a simple connected  graph  of order  p and  size q.  A decomposition  of a graph  G is a collection  π  of edge-disjoint sub graphs  G1, G2, ..., Gn  of G such  that every  edge of G belongs to exactly  one Gi , (1 ≤ i ≤ n) . The decomposition  π = {G1, G2, ....Gn } of a connected  graph  G is said to be an edge geodetic self decomposi- tion  if ge (Gi ) = ge (G), (1 ≤ i ≤ n).The maximum  cardinality of π is called the edge geodetic self decomposition  number of G and is denoted by πsge (G), where ge (G) is the edge geodetic number  of G.  Some general properties   satisfied  by  this  concept  are  studied.    Connected  graphs which are edge geodetic self decomposable  are characterized.


2011 ◽  
Vol 311 (16) ◽  
pp. 1693-1698 ◽  
Author(s):  
Boštjan Brešar ◽  
Tadeja Kraner Šumenjak ◽  
Aleksandra Tepeh

2014 ◽  
Vol 24 (3) ◽  
pp. 528-550
Author(s):  
VICTOR FALGAS-RAVRY

Given a graph G, let Q(G) denote the collection of all independent (edge-free) sets of vertices in G. We consider the problem of determining the size of a largest antichain in Q(G). When G is the edgeless graph, this problem is resolved by Sperner's theorem. In this paper, we focus on the case where G is the path of length n − 1, proving that the size of a maximal antichain is of the same order as the size of a largest layer of Q(G).


2009 ◽  
Vol 29 (4) ◽  
pp. 427 ◽  
Author(s):  
A. P. Santhakumaran ◽  
J. John
Keyword(s):  

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