Results 31 to 40 of about 21,234 (294)

Majorization and the number of bipartite graphs for given vertex degrees [PDF]

open access: yesTransactions on Combinatorics, 2018
The emph{bipartite realisation problem} asks for a pair of non-negative‎, ‎non-increasing integer lists $a:=(a_1,ldots,a_n)$ and $b:=(b_1,ldots,b_{n'})$ if there is a labeled bipartite graph $G(U,V,E)$ (no loops or multiple edges) such that each vertex ...
Annabell Berger
doaj   +1 more source

Limit distributions of vertex degrees in a conditional configuration graph

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018
The configuration graph where vertex degrees are independent identically distributed random variables is often used for  modeling of complex networks such as the Internet. We consider a random graph consisting of   N vertices.
Irina Chepliukova, Yuri Pavlov
doaj   +1 more source

Tree Inference: Response Time and Other Measures in a Binary Multinomial Processing Tree, Representation and Uniqueness of Parameters

open access: yesMathematics, 2022
A Multinomial Processing Tree (MPT) is a directed tree with a probability associated with each arc and partitioned terminal vertices. We consider an additional parameter for each arc, a measure such as time. Each vertex represents a process.
Richard Schweickert, Xiaofang Zheng
doaj   +1 more source

Exact Solutions of a Generalized Weighted Scale Free Network

open access: yesJournal of Applied Mathematics, 2013
We investigate a class of generalized weighted scale-free networks, where the new vertex connects to m pairs of vertices selected preferentially. The key contribution of this paper is that, from the standpoint of random processes, we provide rigorous ...
Li Tan, Dingyou Lei
doaj   +1 more source

On conditional configuration graphs with random distribution of vertex degrees

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2016
We consider a configuration graph with N vertices. The degrees of the vertices are drawn independently from a discrete power-law distribution with positive parameter τ . They are equal to the number of each vertex’s numbered semiedges.
Yury Pavlov
doaj   +1 more source

Distinct degrees in induced subgraphs [PDF]

open access: yes, 2020
An important theme of recent research in Ramsey theory has been establishing pseudorandomness properties of Ramsey graphs. An N-vertex graph is called C-Ramsey if it has no homogeneous set of size C logN.
Keevash, Peter   +3 more
core   +1 more source

Limit distributions of maximum vertex degree in a conditional configuration graph

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018
We consider configuration graphs with N vertices. The degrees of the vertices are independent identically distributed  random variables following the power-law distribution with positive parameter τ.
Irina Cheplyukova
doaj   +1 more source

Vertex degrees and 2-cuts in graphs with many hamiltonian vertex-deleted subgraphs

open access: yes, 2022
A 2-connected non-hamiltonian graph G is a k-graph if for exactly k < |V(G)| vertices in G, removing such a vertex yields a non-hamiltonian graph. We characterise k-graphs of connectivity 2 and describe structurally interesting examples of such graphs ...
Zamfirescu, Carol
core   +1 more source

Uses of degree-based topological indices in QSPR analysis of alkaloids with poisonous and healthful nature

open access: yesFrontiers in Physics
In this article, a quantitative structure-property relationship is performed for the prediction of six physico-chemical properties of 16 alkaloid structures using three different types of degree-based topological indices.
Muhammad Waheed Rasheed   +2 more
doaj   +1 more source

The structure of a configuration graph with a normally distributed parameter of the power series distribution of vertex degrees

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018
We consider configuration graphs with N vertices. The degrees of the vertices are independent random variables identically distributed according to the power law, with a positive parameter τ .
Yury Pavlov
doaj   +1 more source

Home - About - Disclaimer - Privacy