Results 11 to 20 of about 29,541 (268)

On Transmission Irregular Cubic Graphs of an Arbitrary Order

open access: yesMathematics, 2022
The transmission of a vertex v of a graph G is the sum of distances from v to all the other vertices of G. A transmission irregular graph (TI graph) has mutually distinct vertex transmissions.
Anatoly Yu. Bezhaev, Andrey A. Dobrynin
doaj   +1 more source

Total Domination in Generalized Prisms and a New Domination Invariant

open access: yesDiscussiones Mathematicae Graph Theory, 2021
In this paper we complement recent studies on the total domination of prisms by considering generalized prisms, i.e., Cartesian products of an arbitrary graph and a complete graph.
Tepeh Aleksandra
doaj   +1 more source

Radius-invariant graphs [PDF]

open access: yesMathematica Bohemica, 2004
Summary: The eccentricity \(e(v)\) of a vertex \(v\) is defined as the distance to a farthest vertex from \(v\). The radius of a graph \(G\) is defined as \(r(G)=\min _{u \in V(G)}\{ e(u)\}\). A graph \(G\) is radius-edge-invariant if \(r(G-e)=r(G)\) for every \(e \in E(G)\), radius-vertex-invariant if \(r(G-v)= r(G)\) for every \(v \in V(G)\) and ...
Bálint, V., Vaček, O.
openaire   +2 more sources

Best Graph Type to Compare Discrete Groups: Bar, Dot, and Tally

open access: yesFrontiers in Psychology, 2021
Different graph types might differ in group comparison due to differences in underlying graph schemas. Thus, this study examined whether graph schemas are based on perceptual features (i.e., each graph has a specific schema) or common invariant ...
Fang Zhao, Robert Gaschler
doaj   +1 more source

Some Applications of Strong Product [PDF]

open access: yesMathematics Interdisciplinary Research, 2018
Let G and H be graphs. The strong product GH of graphs G and H is the graph with vertex set V(G)V(H) and u=(u1, v1) is adjacent with v= (u2, v2) whenever (v1 = v2 and u1 is adjacent with u2) or (u1 = u2 and v1 is adjacent with v2) or (u1 is adjacent ...
Mostafa Tavakoli   +2 more
doaj   +1 more source

Intersection dimension and graph invariants

open access: yesDiscussiones Mathematicae Graph Theory, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Aravind N.R., Subramanian C.R.
openaire   +4 more sources

On the reconstruction of graph invariants [PDF]

open access: yesElectronic Notes in Discrete Mathematics, 2009
The reconstruction conjecture has remained open for simple undirected graphs since it was suggested in 1941 by Kelly and Ulam. In an attempt to prove the conjecture, many graph invariants have been shown to be reconstructible from the vertex-deleted deck, and in particular, some prominent graph polynomials.
openaire   +2 more sources

Some Invariants of Jahangir Graphs [PDF]

open access: yesSymmetry, 2017
In this report, we compute closed forms of M-polynomial, first and second Zagreb polynomials and forgotten polynomial for Jahangir graphs Jn,m for all values of m and n. From the M-polynomial, we recover many degree-based topological indices such as first and second Zagreb indices, modified Zagreb index, Symmetric division index, etc.
Mobeen Munir   +5 more
openaire   +1 more source

The Foliage Partition: An Easy-to-Compute LC-Invariant for Graph States [PDF]

open access: yesQuantum
This paper introduces the foliage partition, an easy-to-compute LC-invariant for graph states, of computational complexity $\mathcal{O}(n^3)$ in the number of qubits.
Adam Burchardt, Frederik Hahn
doaj   +1 more source

Eccentric topological properties of a graph associated to a finite dimensional vector space

open access: yesMain Group Metal Chemistry, 2020
A topological index is actually designed by transforming a chemical structure into a number. Topological index is a graph invariant which characterizes the topology of the graph and remains invariant under graph automorphism.
Liu Jia-Bao   +5 more
doaj   +1 more source

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