Results 71 to 80 of about 3,095,070 (339)

On Uniquely Hamiltonian Claw-Free and Triangle-Free Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2015
A graph is uniquely Hamiltonian if it contains exactly one Hamiltonian cycle. In this note, we prove that claw-free graphs with minimum degree at least 3 are not uniquely Hamiltonian.
Seamone Ben
doaj   +1 more source

A closed -knight’s tour on some cylinder chessboards

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
A -knight’s move on the cylinder chessboard is the move of the knight 2 squares vertically or 2 squares horizontally and then 3 squares perpendicular to it.
Sirirat Singhun   +2 more
doaj   +1 more source

Fan's condition on induced subgraphs for circumference and pancyclicity [PDF]

open access: yesOpuscula Mathematica, 2017
Let \(\mathcal{H}\) be a family of simple graphs and \(k\) be a positive integer. We say that a graph \(G\) of order \(n\geq k\) satisfies Fan's condition with respect to \(\mathcal{H}\) with constant \(k\), if for every induced subgraph \(H\) of \(G ...
Wojciech Wideł
doaj   +1 more source

Cyclic and symmetric hamiltonian cycle systems of the complete multipartite graph: even number of parts

open access: yesArs Math. Contemp., 2016
In this paper, we present a complete solution to the existence problem for a cyclic hamiltonian cycle system for the complete multipartite graph with an even number of parts all of the same cardinality.
Francesca Merola   +2 more
semanticscholar   +1 more source

Consolidate Overview of Ribonucleic Acid Molecular Dynamics: From Molecular Movements to Material Innovations

open access: yesAdvanced Engineering Materials, EarlyView.
Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
wiley   +1 more source

What do Eulerian and Hamiltonian cycles have to do with genome assembly?

open access: yesPLoS Computational Biology, 2021
Many students are taught about genome assembly using the dichotomy between the complexity of finding Eulerian and Hamiltonian cycles (easy versus hard, respectively).
Paul Medvedev, Mihai Pop
doaj   +1 more source

Hamilton-connectedness and Hamilton-laceability of planar geometric graphs with applications

open access: yesAIMS Mathematics, 2021
In this paper, we have used two different proof techniques to show the Hamilton-connectedness of graphs. By using the vertex connectivity and Hamiltoniancity of graphs, we construct an infinite family of Hamilton-connected convex polytope line graphs ...
Suliman Khan   +4 more
doaj   +1 more source

Hamiltonian chordal graphs are not cycle extendible [PDF]

open access: yes, 2014
In 1990, Hendry conjectured that every Hamiltonian chordal graph is cycle extendible; that is, the vertices of any non-Hamiltonian cycle are contained in a cycle of length one greater.
Lafond, Manuel, Seamone, Ben
core  

New Developments in the Field of Production and Application of Multi‐Material Wire Arc Additive Manufacturing Components: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
The utilization of direct energy deposition (DED)‐arc additive manufacturing processes in industrial applications is increasing, and these processes have the potential for multi‐material applications. This work provides a overview of the state of research in DED‐arc made functional graded structures, to establish a link to potential industrial ...
Kai Treutler, Volker Wesling
wiley   +1 more source

A logical model of HCP

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
For an arbitrary undirected graph G, we are designing a logical model for the Hamiltonian Cycle Problem (HCP), using tools of Boolean algebra only. The obtained model is a logic formulation of the conditions for the existence of the Hamiltonian cycle ...
Anatoly D. Plotnikov
doaj   +1 more source

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