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Fractal Weyl Law for Open Chaotic Maps [PDF]

open access: yes, 2004
This contribution summarizes our work with M.Zworski on open quantum open chaoticmaps (math-ph/0505034). For a simple chaotic scattering system (the open quantum baker's map), we compute the "long-living resonances" in the semiclassical r\'{e}gime, and ...
Asch, Joachim, Joye, Alain
core   +9 more sources

ON THE PROPAGATION OF EQUATORIAL WAVES INTERACTING WITH A NON-UNIFORM CURRENT [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics, 2022
We consider the propagation of equatorial waves of small amplitude, in a flow with an underlying non-uniform current. Without making the too restrictive rigid-lid approximation, by exploiting the available Hamiltonian structure of the problem, we derive ...
Emil Novruzov
doaj   +1 more source

Further enumeration results concerning a recent equivalence of restricted inversion sequences [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2022
Let asc and desc denote respectively the statistics recording the number of ascents or descents in a sequence having non-negative integer entries.
Toufik Mansour, Mark Shattuck
doaj   +1 more source

Simple conditions for the transformation of dynamical coordinates into canonical ones in Hamiltonian dynamics [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics
We obtain conditions, which when fulfilled, permit to transform the coordinates of a dynamical system into pairs of canonical ones for some Hamiltonian system.
Patrick Cassam-Chenaï
doaj   +1 more source

Extracting dynamical equations from experimental data is NP-hard [PDF]

open access: yes, 2012
The behavior of any physical system is governed by its underlying dynamical equations. Much of physics is concerned with discovering these dynamical equations and understanding their consequences.
A. Mukherjea   +9 more
core   +4 more sources

High order multiscale analysis of discrete integrable equations [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics
In this article we present the results obtained applying the multiple scale expansion up to the order $\varepsilon^6$ to a dispersive multilinear class of equations on a square lattice depending on 13 parameters. We show that the integrability conditions
Rafael Hernandez Heredero   +2 more
doaj   +1 more source

Modular Theory, Non-Commutative Geometry and Quantum Gravity [PDF]

open access: yes, 2010
This paper contains the first written exposition of some ideas (announced in a previous survey) on an approach to quantum gravity based on Tomita-Takesaki modular theory and A.
Bertozzini, Paolo   +2 more
core   +4 more sources

Exact Wave Functions for Generalized Harmonic Oscillators [PDF]

open access: yes, 2011
We transform the time-dependent Schroedinger equation for the most general variable quadratic Hamiltonians into a standard autonomous form. As a result, the time-evolution of exact wave functions of generalized harmonic oscillators is determined in terms
Lanfear, Nathan   +2 more
core   +1 more source

Three-Hilbert-Space Formulation of Quantum Mechanics [PDF]

open access: yes, 2009
In paper [Znojil M., Phys. Rev. D 78 (2008), 085003, 5 pages, arXiv:0809.2874] the two-Hilbert-space (2HS, a.k.a. cryptohermitian) formulation of Quantum Mechanics has been revisited. In the present continuation of this study (with the spaces in question
Znojil, Miloslav
core   +5 more sources

In memoriam two distinguished participants of the Bregenz Symmetries in Science Symposia: Marcos Moshinsky and Yurii Fedorovich Smirnov [PDF]

open access: yes, 2009
Some particular facets of the numerous works by Marcos Moshinsky and Yurii Fedorovich Smirnov are presented in these notes. The accent is put on some of the common interests of Yurii and Marcos in physics, theoretical chemistry, and mathematical physics.
Asherova R M   +46 more
core   +2 more sources

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