Results 31 to 40 of about 2,991,925 (319)

An Efficient Algorithm to Test Potential Bipartiteness of Graphical Degree Sequences

open access: yesTheory and Applications of Graphs, 2021
As a partial answer to a question of Rao, a deterministic and customizable efficient algorithm is presented to test whether an arbitrary graphical degree sequence has a bipartite realization.
Kai Wang
doaj   +1 more source

Asymptotic enumeration of graphs by degree sequence, and the degree sequence of a random graph

open access: yesJournal of the European Mathematical Society, 2023
In this paper we relate a fundamental parameter of a random graph, its degree sequence, to a simple model of nearly independent binomial random variables. As a result, many interesting functions of the joint distribution of graph degrees, such as the distribution of the median degree, become amenable to estimation.
Liebenau, Anita, Wormald, Nick
openaire   +2 more sources

On the swap-distances of different realizations of a graphical degree sequence [PDF]

open access: yes, 2013
One of the first graph theoretical problems which got serious attention (already in the fifties of the last century) was to decide whether a given integer sequence is equal to the degree sequence of a simple graph (or it is {\em graphical} for short ...
Erdős   +7 more
core   +2 more sources

A Constructive Extension of the Characterization on Potentially Ks,t-Bigraphic Pairs

open access: yesDiscussiones Mathematicae Graph Theory, 2017
Let Ks,t be the complete bipartite graph with partite sets of size s and t. Let L1 = ([a1, b1], . . . , [am, bm]) and L2 = ([c1, d1], . . . , [cn, dn]) be two sequences of intervals consisting of nonnegative integers with a1 ≥ a2 ≥ . . . ≥ am and c1 ≥ c2
Guo Ji-Yun, Yin Jian-Hua
doaj   +1 more source

On the necessity of Chvátal’s Hamiltonian degree condition

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
In 1972 Chvátal gave a well-known sufficient condition for a graphical sequence to be forcibly Hamiltonian, and showed that in some sense his condition is best possible.
Douglas Bauer   +3 more
doaj   +1 more source

On degree sequence

open access: yesUbiquity, 2008
I ndi got her BS in Computer Science from Cal Poly and began her master's at Colorado State. She then worked as a software engineer, later managing Web applications that focused on the user. Her concepts in mental models derive from attempting to bridge the developer-user gap.
Samar Sen Sarma   +3 more
openaire   +2 more sources

Evaluation of Infrared Detector Response Characteristics Drift Based on Time Sequence [PDF]

open access: yesHangkong bingqi, 2023
The response characteristic drift of infrared detector seriously degrades the imaging quality and system performance. Aiming at the lack of effective evaluation index and difficulty in modeling and evaluating the response characteristic drift of infrared
Hu Ruolan, Shang Chao, Wang Jinchun, Peng Jing
doaj   +1 more source

Realizing degree sequences in parallel [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 1994
Summary: A sequence \(d\) of integers is a degree sequence if there exists a (simple) graph \(G\) such that the components of \(d\) are equal to the degree of the vertices of \(G\). The graph \(G\) is said to be a realization of \(d\). We provide an efficient parallel algorithm to realize \(d\); the algorithm runs in \(O(\log n)\) time using \(O(n+ m)\)
Arikati, S., Maheshwari, A.
openaire   +5 more sources

On balanced bipartitions of graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Bollobás and Scott conjectured that every graph G has a balanced bipartite spanning subgraph H such that for each for each In this paper, we consider the contrary side and show that every graphic sequence has a realization G which admits a balanced ...
Guangnuan Li
doaj   +1 more source

Finding the Zeros of a High-Degree Polynomial Sequence

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2021
A 1-parameter initial-boundary value problem for a linear spatially 1-dimensional homogeneous degenerate wave equation, posed in a space-time rectangle, in case of strong degeneracy, was reduced to a linear integro-differential equation of convolution ...
Vladimir L. Borsch, Peter I. Kogut
doaj   +1 more source

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