Results 21 to 30 of about 1,208,588 (320)

Effect of discrete resonant manifold structure on discrete wave turbulence [PDF]

Physical Review E, 2020
We consider the long-term dynamics of nonlinear dispersive waves in a finite periodic domain. The purpose of the work is to show that the statistical properties of the wave field rely critically on the structure of the discrete resonant manifold (DRM).
Alexander Hrabski, Yulin Pan
openaire   +4 more sources

Odd Harmonious Labeling of Some Graphs [PDF]

, 2012
The labeling of discrete structures is a potential area of research due to its wide range of applications.
Shah, N.H., Vaidya, S.K.
core   +1 more source

Persisting randomness in randomly growing discrete structures: graphs and search trees [PDF]

, 2015
The successive discrete structures generated by a sequential algorithm from random input constitute a Markov chain that may exhibit long term dependence on its first few input values.
Grübel, Rudolf
core   +1 more source

Ground states of Heisenberg evolution operator in discrete three-dimensional space-time and quantum discrete BKP equations [PDF]

, 2009
In this paper we consider three-dimensional quantum q-oscillator field theory without spectral parameters. We construct an essentially big set of eigenstates of evolution with unity eigenvalue of discrete time evolution operator.
Bazhanov V V, Bazhanov V V, Bobenko A, Bogdanov L V, Kashaev R M, Korepanov I G, Korepanov I G, Sauer R, Sergeev S M, Sergeev S M, Sergeev S M, Sergeev S M, Sergey M Sergeev   +12 more
core   +1 more source

On the singularity structure of the discrete KdV equation [PDF]

Journal of Physics A: Mathematical and Theoretical, 2020
The discrete KdV (dKdV) equation, the pinnacle of discrete integrability, is often thought to possess the singularity confinement property because it confines on an elementary quadrilateral. Here we investigate the singularity structure of the dKdV equation through reductions of the equation, obtained for initial conditions on a staircase with height 1,
Doyong Um, Ralph Willox, Basil Grammaticos, Alfred Ramani   +3 more
openaire   +6 more sources

Combinatorial Generation Algorithms for Directed Lattice Paths

Mathematics
Graphs are a powerful tool for solving various mathematical problems. One such task is the representation of discrete structures. Combinatorial generation methods make it possible to obtain algorithms that can create discrete structures with specified ...
Yuriy Shablya, Arsen Merinov, Dmitry Kruchinin   +2 more
doaj   +1 more source

Pearson Correlation and Discrete Wavelet Transform for Crack Identification in Steel Beams

Mathematics, 2022
Discrete wavelet transform is a useful means for crack identification of beam structures. However, its accuracy is severely dependent on the selecting mother wavelet and vanishing moments, which raises a significant challenge in practical structural ...
Morteza Saadatmorad, Ramazan-Ali Jafari Talookolaei, Mohammad-Hadi Pashaei, Samir Khatir, Magd Abdel Wahab   +4 more
doaj   +1 more source

Discrete solitons in coupled active lasing cavities [PDF]

, 2012
We examine the existence and stability of discrete spatial solitons in coupled nonlinear lasing cavities (waveguide resonators), addressing the case of active defocusing media, where the gain exceeds damping in the low-amplitude limit.
Alexey V. Yulin, Egorov, Egorov, Egorov, Jaroslaw E. Prilepsky, Kiselev, Lederer, Magnus Johansson, Peschel, Staliunas, Stanislav A. Derevyanko, Yulin, Yulin   +12 more
core   +3 more sources

Continuous limit and location-manageable discrete loop rogue wave solutions for the semi-discrete complex short pulse equation

Results in Physics, 2022
This paper focuses on the semi-discrete complex short pulse equation which may describe the ultra-short pulse propagation in optical fiber. First, we study the continuous limit of the semi-discrete complex short pulse equation and establish a certain ...
Zhe Lin, Xiao-Yong Wen
doaj   +1 more source

INTERACTIONS BETWEEN CETYLTRIMETHYLAMMONIUM OR TETRAMETYLAMMMONIUM BROMIDE AND MCl2 OR MCl5 (M = Hg, Cu, Zn, Co, Ni, Cd and Nb) IN MONONUCLEAR COMPLEXES: SYNTHESIS AND INFRARED STUDY

Journal of Engineering Studies and Research, 2020
On allowing cetyltrimethyl ammonium bromide (C19H42NBr) and HgCl2, CuCl2.2H2O, CoCl2.6H2O, ZnCl2, NiCl2.6H2O or NbCl5 in specific ratio in methanol, new mononuclear have been obtained and studied by infrared.
DAME SEYE, ASSANE TOURE, CHEIKH ABDOUL KHADIR DIOP, LIBASSE DIOP   +3 more
doaj   +5 more sources