scholarly journals Hamiltonian claw-free graphs involving minimum degrees

2013 ◽  
Vol 161 (10-11) ◽  
pp. 1530-1537 ◽  
Author(s):  
MingChu Li
Keyword(s):  
Filomat ◽  
2016 ◽  
Vol 30 (3) ◽  
pp. 611-619
Author(s):  
Sercan Topkaya ◽  
Sinan Cevik

In this paper, by establishing a new graph ?(G) over the semi-direct product of groups, we will first state and prove some graph-theoretical properties, namely, diameter, maximum and minimum degrees, girth, degree sequence, domination number, chromatic number, clique number of ?(G). In the final section we will show that ?(G) is actually a perfect graph.


2010 ◽  
Vol 24 (2) ◽  
pp. 486-504 ◽  
Author(s):  
Andrzej Czygrinow ◽  
Louis DeBiasio ◽  
H. A. Kierstead

Author(s):  
Jia-Bao Liu ◽  
Muhammad Imran ◽  
Shakila Baby ◽  
Hafiz Muhammad Afzal Siddiqui ◽  
Muhammad Kashif Shafiq

Background: A topological index is a real number associated to a graph, that provides information about its physical and chemical properties along with their correlations.Topological indices are being used successfully in Chemistry, Computer Science and many other fields. Aim and Objective: In this article, we apply the well known, Cartesian product on F-sums of connected and finite graphs. We formulate sharp limits for some famous degree dependent indies. Results: Zagreb indices for the graph operations T(G), Q(G), S(G), R(G) and their F-sums have been computed. By using orders and sizes of component graphs, we derive bounds for Zagreb indices, F-index and Narumi-Katayana index. Conclusion: The formulation of expressions for the complicated products on F-sums, in terms of simple parameters like maximum and minimum degrees of basic graphs, reduces the computational complexities.


2011 ◽  
Vol 31 (3) ◽  
pp. 1155-1166 ◽  
Author(s):  
Ailian Chen ◽  
Fuji Zhang ◽  
Hao Li
Keyword(s):  

2009 ◽  
Vol 309 (11) ◽  
pp. 3580-3587 ◽  
Author(s):  
MingChu Li ◽  
Yongrui Cui ◽  
Liming Xiong ◽  
Yuan Tian ◽  
He Jiang ◽  
...  
Keyword(s):  

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