Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Alain Grosjean"'
Autor:
Alain Grosjean
Cet ouvrage offre une analyse des grands enjeux en matière de protection des données à caractère personnel, à la lumière des dispositions de la proposition de règlement européen et des législations européennes en vigueur.Nous assistons actu
Autor:
Alain Grosjean, John P. Killingbeck
Publikováno v:
Journal of Mathematical Chemistry. 47:1027-1037
A Gaussian elimination form of inverse iteration within the complex coordinate approach is shown to produce a simple uniform method of finding both real bound state energies and complex resonant state energies for several problems, which have been tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::245d2fd396c1380f3767b8fd2e893e57
https://doi.org/10.1007/s10910-009-9622-5
https://doi.org/10.1007/s10910-009-9622-5
Publikováno v:
Journal of Physics A: Mathematical and General. 39:L547-L550
Complex hypervirial perturbation theory (HVPT) is applied to the problem of a harmonic oscillator with a perturbation gx3exp(i), for which the traditional Rayleigh–Schodinger perturbation theory has to be supplemented by hyperasymptotics for obtain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6125e5bc5593d24459b118be6f540053
https://doi.org/10.1088/0305-4470/39/34/l01
https://doi.org/10.1088/0305-4470/39/34/l01
Publikováno v:
Journal of Physics A: Mathematical and Theoretical
Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2005, 38, pp.L-L5
Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2005, 38, pp.L-L5
A previously reported simple method for calculating complex matrix eigenvalues is modified to incorporate the traditional HEG approach for the case of even parity potentials. Two examples of resonance calculations are given. Our matrix and perturbati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::041adb339dd71a06f754574ca1f137c9
https://doi.org/10.1088/0305-4470/38/42/l05
https://doi.org/10.1088/0305-4470/38/42/l05
Publikováno v:
Journal of Physics A: Mathematical and General. 37:L567-L572
A simple iterative method is described for finding the eigenvalues of a general square complex matrix. Several numerical examples involving complex symmetric matrices are treated. In particular, it is found that a naive matrix calculation without com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c57794c8e9c07a8fef44337fea12188c
https://doi.org/10.1088/0305-4470/37/44/l04
https://doi.org/10.1088/0305-4470/37/44/l04
Publikováno v:
Journal of Physics A: Mathematical and General. 37:7971-7976
Complex variable hypervirial perturbation theory is applied to the case of oscillator and Coulomb potentials perturbed by a single term potential of the form Vxn or Vrn, respectively. The trial calculations reported show that this approach can produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f139e0c15b9b8d1ec94b78c68b4f8f62
https://doi.org/10.1088/0305-4470/37/32/010
https://doi.org/10.1088/0305-4470/37/32/010
Publikováno v:
Journal of Physics A: Mathematical and General. 34:8309-8320
A wide range of topics in the area of hypervirial perturbation theory (HVPT) is discussed. It is shown that with the use of a few simple procedures HVPT is capable of high accuracy for many problems; results from many previous works in the literature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfbaf449619c059510d4323401a42283
https://doi.org/10.1088/0305-4470/34/40/308
https://doi.org/10.1088/0305-4470/34/40/308
Publikováno v:
The Journal of Chemical Physics. 111:7272-7277
A new integration procedure is proposed to solve the nonlinear time-dependent wave operator equation. This procedure can easily be adapted to describe the adiabatic evolution of a system on a long-time scale and also to solve the internal eigenstate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e82fe3525b393cef7bcfe3b3d9645af1
https://doi.org/10.1063/1.480052
https://doi.org/10.1063/1.480052
Publikováno v:
Physics Letters A. 261:169-173
A hypervirial perturbation method is shown to give accurate energy levels for a previously proposed Schrodinger equation for the relative motion of two ions in a Penning trap. The numerical results obtained by some previous authors are found to be in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ace6a1d781a7da9f4676071a941a3723
https://doi.org/10.1016/s0375-9601(99)00617-9
https://doi.org/10.1016/s0375-9601(99)00617-9
Publikováno v:
The Journal of Chemical Physics. 105:5939-5944
A Green function filter operator (H−E.1)−1 is used within a wave operator iterative method for the computation of interior eigenvalues of large Hamiltonian matrices. Test calculations on a coupled oscillator system show a significant improvement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::012043ccaff88ac8e64aa9aea8b83a50
https://doi.org/10.1063/1.472434
https://doi.org/10.1063/1.472434