Results 21 to 30 of about 8,500 (116)

Some topological indices of pentagonal double chains [PDF]

open access: yesITM Web of Conferences, 2022
In graph theory, lattices are used when some structural part of the graph repeats itself finitely or infinitely many times. They have applications in complex analysis and geometry in mathematics, and also natural applications in chemical graph theory. As
Mahalank Pushpalatha   +4 more
doaj   +1 more source

Removing Symmetry in Circulant Graphs and Point-Block Incidence Graphs

open access: yesMathematics, 2021
An automorphism of a graph is a mapping of the vertices onto themselves such that connections between respective edges are preserved. A vertex v in a graph G is fixed if it is mapped to itself under every automorphism of G. The fixing number of a graph G
Josephine Brooks   +5 more
doaj   +1 more source

Strong parity vertex coloring of plane graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
A strong parity vertex coloring of a 2-connected plane graph is a coloring of the vertices such that every face is incident with zero or an odd number of vertices of each color.
Tomas Kaiser   +3 more
doaj   +1 more source

Computation of Resolvability Parameters for Benzenoid Hammer Graph

open access: yesJournal of Mathematics, 2022
A representation of each vertex of a network into distance-based arbitrary tuple form, adding the condition of uniqueness of each vertex with reference to some settled vertices. Such settled vertices form a set known as resolving set.
Ali Ahmad, Al-Nashri Al-Hossain Ahmad
doaj   +1 more source

On Degree-Based Topological Indices of Petersen Subdivision Graph

open access: yesEuropean Journal of Mathematical Analysis, 2023
In this paper, we adequately describe the generalised petersen graph, expanding to the categories of graphs. We created a petersen graph, which is cyclic and has vertices that are arranged in the centre and nine gons plus one vertex, leading to the ...
Mukhtar Ahmad   +5 more
doaj   +1 more source

Connectivity Analysis of Cyclically Balanced Fuzzy Graphs

open access: yesFuzzy Information and Engineering, 2015
The concepts of connectivity and cycle connectivity play an important role in fuzzy graph theory. In this article, cyclic cutvertices, cyclic bridges and cyclically balanced fuzzy graphs are discussed.
N. Jicy, Sunil Mathew
doaj   +1 more source

On Divided-Type Connectivity of Graphs

open access: yesEntropy, 2023
The graph connectivity is a fundamental concept in graph theory. In particular, it plays a vital role in applications related to the modern interconnection graphs, e.g., it can be used to measure the vulnerability of the corresponding graph, and is an ...
Qiao Zhou, Xiaomin Wang, Bing Yao
doaj   +1 more source

From Time–Frequency to Vertex–Frequency and Back

open access: yesMathematics, 2021
The paper presents an analysis and overview of vertex–frequency analysis, an emerging area in graph signal processing. A strong formal link of this area to classical time–frequency analysis is provided.
Ljubiša Stanković   +5 more
doaj   +1 more source

Connectivity Index in Vague Graphs with Application in Construction

open access: yesDiscrete Dynamics in Nature and Society, 2022
The vague graph (VG), which has recently gained a place in the family of fuzzy graph (FG), has shown good capabilities in the face of problems that cannot be expressed by fuzzy graphs and interval-valued fuzzy graphs. Connectivity index (CI) in graphs is
Huiqin Jiang, Yongsheng Rao
doaj   +1 more source

On vertex and edge degree-based topological indices

open access: yesVojnotehnički Glasnik, 2023
Introduction/purpose: The entire topological indices (T Ient) are a class of graph invariants depending on the degrees of vertices and edges. Some general properties of these invariants are established.
Ivan Gutman
doaj   +1 more source

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