Results 61 to 70 of about 6,585,637 (137)

Semiclassical Jaynes–Cummings model, Painlevé test, and exact solutions

, 1991
The semiclassical model equations for a quantum system of N two-level atoms interacting with a single-mode field in a resonant cavity are discussed. For this system of ordinary differential equations the Painlevé test is performed and first integrals are
N. Euler, Mulser, P., W.-H. Steeb, P. Mulser, Steeb, Willi-Hans, Euler, Norbert   +5 more
core   +1 more source

Higher Time-Derivative Theories from Space–Time Interchanged Integrable Field Theories

Universe
We compare a relativistic and a nonrelativistic version of Ostrogradsky’s method for higher-time derivative theories extended to scalar field theories and consider as an alternative a multi-field variant.
Andreas Fring, Takano Taira, Bethan Turner   +2 more
doaj   +1 more source

Just a Test

, 2018
An abstract abstract!An abstract ...
Test, Test
core  

Painlevé Dynamics and the Origin of Life: A Universal Chemical Pathway

Sci
This paper proposes that the origin of life may be understood as a cascade of dynamical integration events governed by Painlevé transcendental equations—a class of nonlinear differential equations arising widely in physics, from quantum mechanics to ...
Michel Planat
doaj   +1 more source

Invertible point transformations, Painlevé test, and the second Painlevé transcendent

, 1991
The techniques of invertible point transformations and the Painlevé analysis can be used to construct integrable ordinary differential equations. We compare both techniques for the second Painlevé transcendent.
Duarte, L.G.S., Moreira, I.C., Steeb, Willi-Hans, Euler, Norbert   +3 more
core   +1 more source

The Weiss-Tabor-Carnevale Painlevé test and Burgers' hierarchy

, 1994
The Weiss-Tabor-Carnevale (WTC) Painlevé test, and its recent perturbative extension, provide necessary conditions for a partial differential equation to have the Painlevé property. It follows that Burgers' hierarchy must pass the WTC Painlevé test.
Andrew Pickering, Pickering, Andrew
core   +1 more source

A Hierachical Infrastrucutre for SOC Test Management [PDF]

, 2003
HD2BIST - a complete hierarchical framework for BIST scheduling, data-patterns delivery, and diagnosis of complex systems - maximizes and simplifies the reuse of built-in test architectures.
Zorian Y., Zorian, Y., Benso, Alfredo, Prinetto, Paolo Ernesto, Di Carlo, Stefano   +4 more
core   +1 more source

Generation of optical solitons molecules and energy flow in Painlevé-integrable Schrödinger dynamical systems

Boundary Value Problems
We study the perturbed and modified nonlinear Schrödinger equation (PNLSE with Kerr nonlinearity and MNLSE), establish their integrability under explicit parameter conditions via the Painlevé test, and construct analytical traveling-wave families ...
Ijaz Ali, Ibtehal Alazman, Nimra Shakeel, Syed T. R. Rizvi, Emad Solouma, Aly R. Seadawy   +5 more
doaj   +1 more source

Symplectic structure of the Painlevé test

, 2001
In this note, we present a result to show that the symplectic structures have been naturally encoded into the Painlevé test. In fact, for every principal balance, there is a symplectic change of dependent variables near movable poles.
Yan, Min, Hu, Jishan
core   +1 more source

Family Sculpture with Playmobil Pieces

Mit dem FSPlay werden innere "Arbeitsmodelle" (Schemata) von Bindungs-/Familien-/Partnerschafts-/Freundschaftsbeziehungen erhoben. Anhand mehrerer Spielfiguren sollen eine oder mehrere Skulpturen gestaltet werden, z. B.
Sydow, K. v.
core   +1 more source