The Spectral Radius for a Class of Double-Star-Like Tree Systems with Maximal Degree 4
2015 ◽
Vol 2015
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pp. 1-6
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Keyword(s):
We mainly study the properties of the 4-double-star-like tree, which is the generalization of star-like trees. Firstly we use graft transformation method to obtain the maximal and minimum extremal graphs of 4-double-star-like trees. Secondly, by the relations between the degree and second degree of vertices in maximal extremal graphs of 4-double-star-like trees we get the upper bounds of spectral radius of 4-double-star-like trees.
Keyword(s):
2011 ◽
Vol 03
(02)
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pp. 185-191
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2017 ◽
Vol 9
(7)
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pp. 168781401770713
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Keyword(s):
2019 ◽
Vol 35
(1)
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pp. 31-40
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2015 ◽
Vol 26
(03)
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pp. 367-380
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