Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Sommacal M"'
Autor:
Sitzia T, Campagnaro T, Dainese M, Cassol M, Cortivo MD, Gatti E, Padovan F, Sommacal M, Nascimbene J
Publikováno v:
iForest - Biogeosciences and Forestry, Vol 10, Iss 1, Pp 845-850 (2017)
The abandonment of silvicultural activities can lead to changes in species richness and composition of biological communities, when compared to those found in managed forests. The aim of this study was to compare the multi-taxonomical diversity of tw
Externí odkaz:
https://doaj.org/article/54493518f9f54a2b83c54d95b7e03a8b
We study the (1+1) focussing nonlinear Schr\"{o}dinger equation for an initial condition with compactly-supported parabolic profile and phase depending quadratically on the spatial coordinate. In the absence of dispersion, using the natural class of
Externí odkaz:
http://arxiv.org/abs/2304.08651
Publikováno v:
Communications in Nonlinear Science and Numerical Simulation, Volume 64, Pages 35-65, 2018
The non-topological, stationary and propagating, soliton solutions of the classical continuous Heisenberg ferromagnet equation are investigated. A general, rigorous formulation of the Inverse Scattering Transform for this equation is presented, under
Externí odkaz:
http://arxiv.org/abs/1507.08097
Publikováno v:
Physical Review B, 85, 214433 (2012)
The propagation and controlled manipulation of strongly nonlinear, two-dimensional solitonic states in a thin, anisotropic ferromagnet are theoretically demonstrated. It has been recently proposed that spin-polarized currents in a nanocontact device
Externí odkaz:
http://arxiv.org/abs/1202.3421
Autor:
Hoefer, M. A., Sommacal, M.
Publikováno v:
Physica D, 241 890-901 (2012)
Propagating, solitary magnetic wave solutions of the Landau-Lifshitz equation with uniaxial, easy-axis anisotropy in thin (two-dimensional) magnetic films are investigated. These localized, nontopological wave structures, parametrized by their preces
Externí odkaz:
http://arxiv.org/abs/1111.2310
Publikováno v:
Journal of Physics A 42 (2009) 015205
This paper presents a more complete version than hitherto published of our explanation of a transition from regular to irregular motions and more generally of the nature of a certain kind of deterministic chaos. To this end we introduced a simple mod
Externí odkaz:
http://arxiv.org/abs/0805.4130
Publikováno v:
J. Phys. A 38 (2005), no. 41, 8873--8896
We introduce and discuss a simple Hamiltonian dynamical system, interpretable as a 3-body problem in the complex plane and providing the prototype of a mechanism explaining the transition from regular to irregular motions as travel on Riemann surface
Externí odkaz:
http://arxiv.org/abs/nlin/0507024
Publikováno v:
In Communications in Nonlinear Science and Numerical Simulation November 2018 64:35-65
Publikováno v:
J. Nonlinear Math. Phys., volume 10, no. 2 (2003) 157-214
Various solutions are displayed and analyzed (both analytically and numerically) of arecently-introduced many-body problem in the plane which includes both integrable and nonintegrable cases (depending on the values of the coupling constants); in par
Externí odkaz:
http://arxiv.org/abs/nlin/0310047
Autor:
Calogero, F., Sommacal, M.
Publikováno v:
J. Nonlinear Math. Phys., volume9, no.4 (2002) 483-516
In a previous paper the \textit{real} evolution of the system of ODEs \ddot{z}_{n} + z_{n}=\sum\limits_{m = 1, m \ne n}^{N} g_{nm}{(z_{n} - z_{m})} ^{- 3}, z_{n} \equiv z_{n}(t), \qquad \dot {z}_{n} \equiv \frac{d z_{n}(t)}{dt}, \qquad n = 1,...,N is
Externí odkaz:
http://arxiv.org/abs/nlin/0306034