Results 11 to 20 of about 154,862 (311)

Absolute Differences Along Hamiltonian Paths

open access: diamondThe Electronic Journal of Combinatorics, 2015
We prove that if the vertices of a complete graph are labeled with the elements of an arithmetic progression, then for any given vertex there is a Hamiltonian path starting at this vertex such that the absolute values of the differences of consecutive vertices along the path are pairwise distinct.
Francesco Monopoli
openalex   +4 more sources

2-generated Cayley digraphs on nilpotent groups have hamiltonian paths [PDF]

open access: green, 2011
Suppose G is a nilpotent, finite group. We show that if {a,b} is any 2-element generating set of G, then the corresponding Cayley digraph Cay(G;a,b) has a hamiltonian path.
Dave Witte Morris
openalex   +6 more sources

Finding Hamiltonian and Longest (s,t)-Paths of C-Shaped Supergrid Graphs in Linear Time

open access: yesAlgorithms, 2022
A graph is called Hamiltonian connected if it contains a Hamiltonian path between any two distinct vertices. In the past, we proved the Hamiltonian path and cycle problems for general supergrid graphs to be NP-complete.
Fatemeh Keshavarz-Kohjerdi, Ruo-Wei Hung
doaj   +1 more source

Optimal Acyclic Hamiltonian Path Completion for Outerplanar Triangulated st-Digraphs (with Application to Upward Topological Book Embeddings)

open access: green, 2008
Given an embedded planar acyclic digraph G, we define the problem of "acyclic hamiltonian path completion with crossing minimization (Acyclic-HPCCM)" to be the problem of determining an hamiltonian path completion set of edges such that, when these edges
Tamara Mchedlidze, Antonios Symvonis
openalex   +4 more sources

Quantum Zeno approach for molecular energies with maximum commuting initial Hamiltonians

open access: yesPhysical Review Research, 2021
We propose to use a quantum adiabatic and simulated-annealing framework to compute the ground state of small molecules. The initial Hamiltonian of our algorithms is taken to be the maximum commuting Hamiltonian that consists of a maximal set of commuting
Hongye Yu, Tzu-Chieh Wei
doaj   +1 more source

Hamiltonian paths and cycles in hypertournaments [PDF]

open access: yesJournal of Graph Theory, 1997
Given two integers n and k, n ≥ k > 1, a k-hypertournament T on n vertices is a pair (V, A), where V is a set of vertices, |V| = n and A is a set of k-tuples of vertices, called arcs, so that for any k-subset S of V, A$ contains exactly one of the k! k-tuples whose entries belong to S. A 2-hypertournament is merely an (ordinary) tournament. A path is a
Gutin, Gregory, Yeo, A.
openaire   +10 more sources

Hamiltonian Cycle Problem in Strong k-Quasi-Transitive Digraphs With Large Diameter

open access: yesDiscussiones Mathematicae Graph Theory, 2021
Let k be an integer with k ≥ 2. A digraph is k-quasi-transitive, if for any path x0x1... xk of length k, x0 and xk are adjacent. Let D be a strong k-quasi-transitive digraph with even k ≥ 4 and diameter at least k +2.
Wang Ruixia
doaj   +1 more source

Properties of SuperHyperGraph and Neutrosophic SuperHyperGraph [PDF]

open access: yesNeutrosophic Sets and Systems, 2022
New setting is introduced to study dominating, resolving, coloring, Eulerian(Hamiltonian) neutrosophic path, n-Eulerian(Hamiltonian) neutrosophic path, zero forcing number, zero forcing neutrosophicnumber, independent number, independent neutrosophic ...
Henry Garrett
doaj   +1 more source

Existence of Dλ-cycles and Dλ-paths [PDF]

open access: yes, 1983
A cycle of C of a graph G is called a Dλ-cycle if every component of G − V(C) has order less than λ. A Dλ-path is defined analogously. In particular, a D1-cycle is a hamiltonian cycle and a D1-path is a hamiltonian path.
Veldman, H.J.
core   +8 more sources

Quantum-Walk-Inspired Dynamic Adiabatic Local Search

open access: yesEntropy, 2023
We investigate the irreconcilability issue that arises when translating the search algorithm from the Continuous Time Quantum Walk (CTQW) framework to the Adiabatic Quantum Computing (AQC) framework.
Chen-Fu Chiang, Paul M. Alsing
doaj   +1 more source

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