Results 41 to 50 of about 154,862 (311)

Noncrossing Hamiltonian Paths in Geometric Graphs [PDF]

open access: yesDiscrete Applied Mathematics, 2004
AbstractA geometric graph is a graph embedded in the plane in such a way that vertices correspond to points in general position and edges correspond to segments connecting the appropriate points. A noncrossing Hamiltonian path in a geometric graph is a Hamiltonian path which does not contain any intersecting pair of edges.
Jakub erný   +3 more
openaire   +2 more sources

The Color Number of Cubic Graphs Having a Spanning Tree with a Bounded Number of Leaves

open access: yesTheory and Applications of Graphs, 2021
The color number c(G) of a cubic graph G is the minimum cardinality of a color class of a proper 4-edge-coloring of G. It is well-known that every cubic graph G satisfies c(G) = 0 if G has a Hamiltonian cycle, and c(G) ≤ 2 if G has a Hamiltonian path. In
Analen Malnegro   +2 more
doaj   +1 more source

The Hamiltonian problem and t-path traceable graphs [PDF]

open access: yesInvolve, a Journal of Mathematics, 2017
12 pages, 4 ...
Bari, Kashif, O’Sullivan, Michael
openaire   +5 more sources

A Hofer-Type Norm of Hamiltonian Maps on Regular Poisson Manifold

open access: yesJournal of Applied Mathematics, 2014
We define a Hofer-type norm for the Hamiltonian map on regular Poisson manifold and prove that it is nondegenerate. We show that the L1,∞-norm and the L∞-norm coincide for the Hamiltonian map on closed regular Poisson manifold and give some sufficient ...
Dawei Sun, Zhenxing Zhang
doaj   +1 more source

Backtracking Algorithms for Constructing the Hamiltonian Decomposition of a 4-regular Multigraph

open access: yesМоделирование и анализ информационных систем, 2021
We consider a Hamiltonian decomposition problem of partitioning a regular graph into edge-disjoint Hamiltonian cycles. It is known that verifying vertex non-adjacency in the 1-skeleton of the symmetric and asymmetric traveling salesperson polytopes is an
Alexander V. Korostil   +1 more
doaj   +1 more source

Evolutionary Method of Sink Node Path Planning Guided by the Hamiltonian of Quantum Annealing Algorithm

open access: yesIEEE Access, 2021
In order to solve the NP-hard problem of mobile sink path planning in wireless sensor networks (WSN) where the communication range is modeled as a circular area and overlaps with each other, this paper proposes a sink node path planning method guided by ...
Zhijie Huang   +4 more
doaj   +1 more source

Hamiltonian paths and hamiltonian connectivity in graphs

open access: yesDiscrete Mathematics, 1993
AbstractLet G be a 2-connected graph with n vertices such that d(u)+d(v)+d(w)-|N(u)∩N(v)∩N(w)| ⩾n + 1 holds for any triple of independent vertices u, v and w. Then for any distinct vertices u and v such that {u, v} is not a cut vertex set of G, there is a hamiltonian path between u and v.
openaire   +2 more sources

SU(2) QCD in the Path Representation: General Formalism and Mandelstam Indentities

open access: yes, 1993
We introduce a path-dependent hamiltonian representation (the path representation) for SU(2) with fermions in 3 + 1 dimensions. The gauge-invariant operators and hamiltonian are realized in a Hilbert space of open path and loop functionals. We obtain two
Aroca   +29 more
core   +2 more sources

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

Triangle-different Hamiltonian paths

open access: yesJournal of Combinatorial Theory, Series B, 2018
Let $G$ be a fixed graph. Two paths of length $n-1$ on $n$ vertices (Hamiltonian paths) are $G$-different if there is a subgraph isomorphic to $G$ in their union. In this paper we prove that the maximal number of pairwise triangle-different Hamiltonian paths is equal to the number of balanced bipartitions of the ground set, answering a question of K ...
István Kovács, Daniel Soltész
openaire   +3 more sources

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