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Distance-Balanced Graphs

open access: yesAnnals of Combinatorics, 2008
Distance-balanced graphs are introduced as graphs in which every edge uv has the following property: The number of vertices closer to u than to v is equal to the number of vertices closer to v than to u. Basic properties of these graphs are obtained.
Janja Jerebic   +2 more
exaly   +3 more sources

Leveraging Different Distance Functions to Predict Antiviral Peptides with Geometric Deep Learning from ESMFold-Predicted Tertiary Structures [PDF]

open access: yesAntibiotics
Background: Machine learning models have been shown to be a time-saving and cost-effective tool for peptide-based drug discovery. In this regard, different graph learning-driven frameworks have been introduced to exploit graph representations derived ...
Greneter Cordoves-Delgado   +4 more
doaj   +2 more sources

Distance spectrum of Indu–Bala product of graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2016
The D-eigenvalues μ1,μ2,…,μn of a graph G of order n are the eigenvalues of its distance matrix D and form the distance spectrum or D-spectrum of G denoted by SpecD(G). Let G1 and G2 be two regular graphs. The Indu–Bala product of G1 and G2 is denoted by
G. Indulal, R. Balakrishnan
doaj   +3 more sources

Distance (signless) Laplacian spectrum of dumbbell graphs [PDF]

open access: yesTransactions on Combinatorics, 2023
In this paper, we determine the distance Laplacian and distance signless Laplacian spectrum of generalized wheel graphs and a new class of graphs called dumbbell graphs.
Sakthidevi Kaliyaperumal   +1 more
doaj   +1 more source

On Eccentricity Version of Zagreb Coindices [PDF]

open access: yesMathematics Interdisciplinary Research, 2021
The eccentric connectivity coindex has recently been introduced (Hua and Miao, 2019) as the total eccentricity sum of all pairs of non-adjacent vertices in a graph.
Mahdieh Azari
doaj   +1 more source

Monophonic Distance in Graphs [PDF]

open access: yesDiscrete Mathematics, Algorithms and Applications, 2011
For any two vertices u and v in a connected graph G, a u – v path is a monophonic path if it contains no chords, and the monophonic distance dm(u, v) from u to v is defined as the length of a longest u – v monophonic path in G. A u – v monophonic path of length dm(u, v) is called a u – v monophonic. The monophonic eccentricity em(v) of a vertex v in G
A. P. Santhakumaran, P. Titus
openaire   +2 more sources

Szeged-type indices of subdivision vertex-edge join (SVE-join)

open access: yesMain Group Metal Chemistry, 2021
In this article, we compute the vertex Padmakar-Ivan (PIv) index, vertex Szeged (Szv) index, edge Padmakar-Ivan (PIe) index, edge Szeged (Sze) index, weighted vertex Padmakar-Ivan (wPIv) index, and weighted vertex Szeged (wSzv) index of a graph product ...
Asghar Syed Sheraz   +4 more
doaj   +1 more source

A Quasi-Hole Detection Algorithm for Recognizing k-Distance-Hereditary Graphs, with k < 2

open access: yesAlgorithms, 2021
Cicerone and Di Stefano defined and studied the class of k-distance-hereditary graphs, i.e., graphs where the distance in each connected induced subgraph is at most k times the distance in the whole graph. The defined graphs represent a generalization of
Serafino Cicerone
doaj   +1 more source

Distance labeling in graphs [PDF]

open access: yesJournal of Algorithms, 2004
Summary: We consider the problem of labeling the nodes of a graph in a way that will allow one to compute the distance between any two nodes directly from their labels (without using any additional information). Our main interest is in the minimal length of labels needed in different cases.
Gavoille, Cyril   +3 more
openaire   +4 more sources

The Threshold Dimension and Irreducible Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2023
Let G be a graph, and let u, v, and w be vertices of G. If the distance between u and w does not equal the distance between v and w, then w is said to resolve u and v.
Mol Lucas   +2 more
doaj   +1 more source

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