Results 71 to 80 of about 2,059,443 (151)

Controlled Lagrangian and Hamiltonian Systems [PDF]

open access: yes, 2002
any control systems are mechanical systems. The unique feature of mechanical systems is the notion of energy, which gives much information on the stability of equilibria.
Chang, Dong Eui
core   +1 more source

The NPO-Completeness of the Longest Hamiltonian Cycle Problem

open access: yes, 2014
[[abstract]]In this paper, the longest Hamiltonian cycle problem and the longest Hamiltonian path problem are proved to be NPO-complete.[[fileno]]2030256010065[[department ...
Wu, Q. S.;Chao, K. M.;Lee, R. C. T.
core   +1 more source

2-Connected Hamiltonian Claw-Free Graphs Involving Degree Sum of Adjacent Vertices

open access: yesDiscussiones Mathematicae Graph Theory, 2020
For a graph H, define σ¯2(H)=min{d(u)+d(v)|uv∈E(H)}{{\bar \sigma }_2} ( H ) = \min \left\{ {d ( u ) + d ( v )|uv \in E ( H )} \right\} . Let H be a 2-connected claw-free simple graph of order n with δ(H) ≥ 3. In [J. Graph Theory 86 (2017) 193–212], Chen
Tian Tao, Xiong Liming
doaj   +1 more source

On Factorable Bigraphic Pairs

open access: yesDiscussiones Mathematicae Graph Theory, 2020
Let S = (a1,. . . , am; b1, . . . , bn), where a1, . . . , am and b1, . . . , bn are two sequences of nonnegative integers. We say that S is a bigraphic pair if there exists a simple bipartite graph G with partite sets {x1, x2, . . . , xm} and {y1, y2, .
Yin Jian-Hua, Li Sha-Sha
doaj   +1 more source

On Hamiltonian alternating cycles and paths

open access: yesComputational Geometry, 2018
We undertake a study on computing Hamiltonian alternating cycles and paths on bicolored point sets. This has been an intensively studied problem, not always with a solution, when the paths and cycles are also required to be plane. In this paper, we relax the constraint on the cycles and paths from being plane to being 1-plane, and deal with the same ...
Mercè Claverol   +4 more
openaire   +9 more sources

Hamiltonian Strongly Regular Graphs [PDF]

open access: yes
We give a sufficient condition for a distance-regular graph to be Hamiltonian. In particular, the Petersen graph is the only connected non-Hamiltonian strongly regular graph on fewer than 99 vertices.Distance-regular graphs;Hamilton cycles JEL ...
Brouwer, A.E., Haemers, W.H.
core  

Enhanced prim's algorithm for finding the hamiltonian cycle in a graph [PDF]

open access: yes, 2013
The Travelling Salesman Problem (TSP) is known as one of the oldest combinatorial optimisation problem which solves the path problem in weighted graph.
Dinon, Nur Atiqah
core  

Finding a Hamiltonian cycle using the Chebyshev polynomials [PDF]

open access: yes
summary:We present an algorithm of finding the Hamiltonian cycle in a general undirected graph by minimization of an appropriately chosen functional. This functional depends on the characteristic polynomial of the graph Laplacian matrix and attains its ...
Vlasák, Miloslav, Lamač, Jan
core   +1 more source

On the Existence of a Second Hamilton Cycle in Hamiltonian Graphs With Symmetry [PDF]

open access: yes, 2013
In 1975, Sheehan conjectured that every simple 4-regular hamiltonian graph has a second Hamilton cycle. If Sheehan's Conjecture holds, then the result can be extended to all simple d-regular hamiltonian graphs with d at least 3.
Wagner, Andrew
core   +1 more source

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