نتایج جستجو برای: graphic sequences

تعداد نتایج: 226235  

Journal: :transactions on combinatorics 0
shariefuddin pirzada university of kashmir bilal a. chat university of kashmir

the set of all non-increasing non-negative integer sequences $pi=(d_1‎, ‎d_2,ldots,d_n)$ is denoted by $ns_n$‎. ‎a sequence $piin ns_{n}$ is said to be graphic if it is the degree sequence of a simple graph $g$ on $n$ vertices‎, ‎and such a graph $g$ is called a realization of $pi$‎. ‎the set of all graphic sequences in $ns_{n}$ is denoted by $gs_{n}$‎. ‎the complete product split graph on $l‎ ...

Journal: :Acta Universitatis Sapientiae, Informatica 2014

Journal: :Journal of Combinatorial Theory, Series B 1975

2009
Arthur H. Busch Michael J. Ferrara Stephen G. Hartke Michael S. Jacobson Hemanshu Kaul Douglas B. West

Let π1 and π2 be graphic n-tuples, with π1 = (d (1) 1 , . . . , d (1) n ) and π2 = (d (2) 1 , . . . , d (2) n ) (they need not be monotone). We say that π1 and π2 pack if there exist edge-disjoint graphs G1 and G2 with vertex set {v1, . . . , vn} such that the degrees of vi in G1 and G2 are d (1) i and d (2) i , respectively. We prove that two graphic n-tuples pack if ∆ ≤ √ 2δn− (δ−1), where ∆ ...

Journal: :Discrete Applied Mathematics 2015

Journal: :Discrete Applied Mathematics 2019

Journal: :Kragujevac Journal of Mathematics 2014

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