Results 41 to 50 of about 280 (99)

On the Clean Graph of Commutative Artinian Rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.
For a commutative Artinian ring R with unity, the clean graph Cl(R) is a graph with vertices in the form of an ordered pair (e, u), where e is an idempotent and u is a unit of ring R, respectively. Two distinct vertices (e, u) and (f, v) are adjacent in Cl(R) if and only if ef = fe = 0 or uv = vu = 1.
R. Singh   +3 more
wiley   +1 more source

The Structure of Tripotent Graph of Certain Commutative Rings

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics
In this paper, we characterize the texture of tripotent graph of the ring, which is associated by tripotent element of a ring such that, for every two distinct vertices; and then, their adjacent if and only if.
Parween O. Ali, Shaymaa Essa
doaj   +1 more source

Navigating Intelligence: A Survey of Google OR‐Tools and Machine Learning for Global Path Planning in Autonomous Vehicles

open access: yesAdvanced Intelligent Systems, Volume 6, Issue 9, September 2024.
Advancing global path planning algorithm is studied for transforming geochemical mining sampling in autonomous vehicles. Cutting‐edge algorithms are harnessed to solve the intricate traveling salesman problem, optimizing route efficiency. A novel analysis of operations research‐tools and reinforcement learning techniques is investigated, demonstrating ...
Alexandre Benoit, Pedram Asef
wiley   +1 more source

An adaptive neural design for planar rigid formation of three coleaders in unknown flowfields

open access: yesIET Control Theory &Applications, Volume 18, Issue 6, Page 814-824, April 2024.
This article deals with the robust planar rigid formation control problem of three second‐order coleaders with unknown flowfields acting on the velocity and acceleration respectively. To yield the uniform boundedness property of the resulting system, an adaptive projection is introduced to design the novel adaptive neural control law.
Weibin Chen, Peng Xu, Yang‐Yang Chen
wiley   +1 more source

Study on the Effects of Dust Particle Size and Respiratory Intensity on the Pattern of Respiratory Particle Deposition in Humans

open access: yesIndoor Air, Volume 2024, Issue 1, 2024.
Nowadays, dust exposure pollution is receiving a lot of attention due to its significant impact on public health. To investigate the impact of dust particle size and human respiratory strength on respiratory particle deposition patterns, data was collected through on‐site surveys. The study analyzed the equivalent respiratory strength, dust environment
Gang Zhou   +8 more
wiley   +1 more source

Fast Exact Algorithms for Hamiltonicity in Claw-Free Graphs [PDF]

open access: yes, 2009
The Hamiltonian Cycle problem asks if an $n$-vertex graph $G$ has a cycle passing through all vertices of $G$. This problem is a classic $NP$-complete problem.
Fomin, F. V.   +11 more
core   +1 more source

Eulerian subgraphs containing given vertices and hamiltonian line graphs

open access: yesDiscrete Mathematics, 1998
Let \(G\) be a graph and let \(D_1(G)\) be the set of vertices of degree 1 in \(G\). A graph is called an eulerian graph if it is connected and every vertex has even degree. An eulerian subgraph \(H\) of a graph \(G\) is called a dominating eulerian subgraph if \(G-V(H)\) is edgeless.
openaire   +1 more source

Some characterizations of Eulerian and Hamiltonian graphs

open access: yes, 2006
The thesis is an exposition of some characterization of Eulerian and Hamiltonian graphs. It discusses the definitions of an Eulerian graph, Hamiltonian graph and examples, a necessary and sufficient condition for a graph to be Eulerian, a necessary and ...
Ong, Hans Vernie L.   +1 more
core  

6. Graphs

open access: yes, 2016
Graph theory is about collections of points that are joined in pairs, such as a road map with towns connected by roads or a molecule with atoms joined by chemical bonds. ‘Graphs’ revisits the Königsberg bridges problem, the knight’s tour problem, the Gas–
Robin Wilson
core   +1 more source

A study on Dicycles and Eulerian Subdigraphs [PDF]

open access: yes, 2016
1. Dicycle cover of Hamiltonian oriented graphs. A dicycle cover of a digraph D is a family F of dicycles of D such that each arc of D lies in at least one dicycle in F. We investigate the problem of determining the upper bounds for the minimum number of
Alsatami, Khalid A.
core   +1 more source

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