Results 1 to 10 of about 2,059,443 (151)

Complexity of Hamiltonian Cycle Reconfiguration [PDF]

open access: yesAlgorithms, 2018
The Hamiltonian cycle reconfiguration problem asks, given two Hamiltonian cycles C 0 and C t of a graph G, whether there is a sequence of Hamiltonian cycles C 0 , C 1 , … , C t such that C i can be obtained ...
髙岡, 旭   +3 more
core   +7 more sources

On vertices enforcing a Hamiltonian cycle [PDF]

open access: yesDiscussiones Mathematicae Graph Theory, 2013
A nonempty vertex set X ⊆ V(G) of a hamiltonian graph G is called an of G if every X-cycle of G (i.e. a cycle of G containing all vertices of X) is hamiltonian. The h(G) of a graph G is defined to be the smallest cardinality of an H-force set of G.
Hexel, Erhard   +3 more
core   +4 more sources

The S-Hamiltonian Cycle Problem [PDF]

open access: yesCoRR
Determining if an input undirected graph is Hamiltonian, i.e., if it has a cycle that visits every vertex exactly once, is one of the most famous NP-complete problems.
Amarilli, Antoine   +2 more
core   +5 more sources

On the H-Force Number of Hamiltonian Graphs and Cycle Extendability [PDF]

open access: yesDiscussiones Mathematicae Graph Theory, 2017
The H-force number h(G) of a hamiltonian graph G is the smallest cardinality of a set A ⊆ V (G) such that each cycle containing all vertices of A is hamiltonian. In this paper a lower and an upper bound of h(G) is given.
Hexel, Erhard, Hexel Erhard
core   +3 more sources

QAOA on Hamiltonian Cycle problem [PDF]

open access: yesCoRR, 2023
I use QAOA to solve the Hamiltonian Circle problem. First, inspired by Lucas, I define the QUBO form of Hamiltonian Cycle and transform it to a quantum circuit by embedding the problem of $n$ vertices to an encoding of $(n-1)^2$ qubits. Then, I calcluate
Ye, Zhuoyang
core   +5 more sources

Cycle Spectra of Hamiltonian Graphs

open access: yesJournal of Combinatorial Theory Series B, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Douglas West   +2 more
exaly   +2 more sources

Two Hamiltonian cycles

open access: yesDiscrete Mathematics, 2022
If the line graph of a graph $G$ decomposes into Hamiltonian cycles, what is $G$? We answer this question for decomposition into two cycles.
Vaidy Sivaraman, Thomas Zaslavsky
openaire   +3 more sources

Counting Traversing Hamiltonian Cycles in Tiled Graphs

open access: yesMathematics, 2023
Recently, the problem of counting Hamiltonian cycles in 2-tiled graphs was resolved by Vegi Kalamar, Bokal, and Žerak. In this paper, we continue our research on generalized tiled graphs.
Alen Vegi Kalamar
doaj   +1 more source

Hamiltonian and pseudo-Hamiltonian cycles and fillings in simplicial complexes [PDF]

open access: yesJournal of Combinatorial Theory, Series B, 2021
We introduce and study a $d$-dimensional generalization of Hamiltonian cycles in graphs - the Hamiltonian $d$-cycles in $K_n^d$ (the complete simplicial $d$-complex over a vertex set of size $n$). Those are the simple $d$-cycles of a complete rank, or, equivalently, of size $1 + {{n-1} \choose d}$.
Rogers Mathew   +3 more
openaire   +4 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

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