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Planar Hop Spanners for Unit Disk Graphs

2010
The simplest model of a wireless network graph is the Unit Disk Graph (UDG): an edge exists in UDG if the Euclidean distance between its endpoints is ≤ 1. The problem of constructing planar spanners of Unit Disk Graphs with respect to the Euclidean distance has received considerable attention from researchers in computational geometry and ad-hoc ...
Catusse, Nicolas   +2 more
openaire   +4 more sources

Improved Total Domination and Total Roman Domination in Unit Disk Graphs

arXiv.org
Let $G=(V, E)$ be a simple undirected graph with no isolated vertex. A set $D_t\subseteq V$ is a total dominating set of $G$ if $(i)$ $D_t$ is a dominating set, and $(ii)$ the set $D_t$ induces a subgraph with no isolated vertex. The total dominating set
Sasmita Rout, G. K. Das
semanticscholar   +1 more source

Approximate Strong Edge-Colouring of Unit Disk Graphs

2020
We show that the strong chromatic index of unit disk graphs is efficiently 6-approximable. This improves on 8-approximability as shown by Barrett, Istrate, Kumar, Marathe, Thite, and Thulasidasan [1]. We also show that strong edge-6-colourability is NP-complete for the class of unit disk graphs.
Grelier, Nicolas   +3 more
openaire   +4 more sources

Weighted CDS in Unit Disk Graph

2012
It was open for many years whether MinW-CDS in unit disk graphs has a polynomial-time constant-approximation or not. Ambuhl et al. [2] discovered the first one. Their solution consists of two stages. At the first stage, they construct a dominating set which is a 72-approximation for the minimum-weight dominating set problem in unit disk graphs as ...
Ding-Zhu Du, Peng-Jun Wan
openaire   +1 more source

Algorithmic aspects of secure domination in unit disk graphs

Information and Computation, 2023
Cai-Xia Wang, Yu Yang, Shou‐Jun Xu
semanticscholar   +1 more source

The Probability of Encounters of Nomadic Lévy Walk on Unit Disk Graphs

Broadband and Wireless Computing, Communication and Applications, 2023
Kazuma Matsubara, N. Hayashibara
semanticscholar   +1 more source

Reverse Shortest Path Problem in Weighted Unit-Disk Graphs

Workshop on Algorithms and Computation, 2022
Haitao Wang, Yiming Zhao
semanticscholar   +1 more source

Critical care management of chimeric antigen receptor T‐cell therapy recipients

Ca-A Cancer Journal for Clinicians, 2022
Alexander Shimabukuro-Vornhagen   +2 more
exaly  

The Probability of Encounters of Mutual Search Using Lévy Walk on Unit Disk Graphs

International Conference on Network-Based Information Systems, 2022
Chisato Nishigami, N. Hayashibara
semanticscholar   +1 more source

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