Results 1 to 10 of about 143,018 (267)

Time-varying Analysis of Brain Networks Based on High-order Dynamic Functional Connections in Mild Cognitive Impairment

open access: yesChinese Journal of Magnetic Resonance
Existing research commonly uses functional connectivity (FC) combined with graph theory analysis to accomplish the auxiliary diagnosis of mild cognitive impairment (MCI).
WANG Xia, WANG Yong, LAN Qing
doaj   +1 more source

Categorical constructions in graph theory

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
This paper presents some graph-theoretic questions from the viewpoint of the portion of category theory which has become common knowledge. In particular, the reader is encouraged to consider whether there is only one natural category of graphs and how ...
Richard T. Bumby, Dana May Latch
doaj   +1 more source

Application of graph theory in liver research: A review

open access: yesPortal Hypertension & Cirrhosis
Graph theory has emerged as a valuable tool in liver research, aiding in the assessment of complex interactions underlying liver diseases at different organizational levels.
Xumei Hu   +7 more
doaj   +1 more source

行星轮系的图论模型及其应用

open access: yesJixie chuandong, 2008
Through analysis of the graph theory model,the conditions that the EGTs’ graph theory model must be met is summarized.On the basis of graph theory model presented in literature[1],a concept of module entity and basic loop in graph theory model is ...
史晓影, 陈良钰, 薛隆泉
doaj  

Computing Topological Indices for Para-Line Graphs of Anthracene

open access: yesOpen Chemistry, 2019
Atoms displayed as vertices and bonds can be shown by edges on a molecular graph. For such graphs we can find the indices showing their bioactivity as well as their physio-chemical properties such as the molar refraction, molar volume, chromatographic ...
Zhang Zhiqiang   +5 more
doaj   +1 more source

Characteristics of nerve graph: A view from graph terminologies

open access: yesData Analytics and Applied Mathematics
In this study, the characteristics of nerve graph are investigated through graph theory. This study addresses the problem of identifying and characterizing nerve graph from the perspective of simple, degree, bipartite, adjacency and cycles terminologies.
Nur Atikah Aziz   +4 more
doaj   +1 more source

Demystification of Readiness, Security, and Technological Enhancements in the Adoption of a Cashless Economy

open access: yesEconomies
The adoption of a cashless economy was accelerated globally by the devastating impact of the COVID-19 pandemic. Brunei Darussalam was not excluded from this trend, as pandemic-related restrictions were implemented to ensure the safety of its population ...
Heru Susanto   +5 more
doaj   +1 more source

On topological indices and entropy measures of beryllonitrene network via logarithmic regression model

open access: yesScientific Reports
Chemical graph theory, a subfield of graph theory, is used to investigate chemical substances and their characteristics. Chemical graph analysis sheds light on the connection, symmetry, and reactivity of molecules.
Guofeng Yu   +5 more
doaj   +1 more source

On a Hopf Algebra in Graph Theory

open access: yesJournal of Combinatorial Theory, Series B, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

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