Results 1 to 10 of about 279,926 (261)

Asymptotic Separation of Variables

open access: yesJournal of Mathematical Analysis and Applications, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Estrada, R., Kanwal, R.P.
openaire   +2 more sources

On the Optimal Control Problem for Vibrations of the Rod/String Consisting of Two Non-Homogeneous Sections with the Condition at an Intermediate Time

open access: yesMathematics, 2022
We consider an optimal boundary control problem for a one-dimensional wave equation consisting of two non-homogenous segments with piecewise constant characteristics. The wave equation describes the longitudinal vibrations of a non-homogeneous rod or the
Vanya Barseghyan, Svetlana Solodusha
doaj   +1 more source

Separation of Variables [PDF]

open access: yesProgress of Theoretical Physics Supplement, 1995
33 pages, harvmac, no ...
openaire   +2 more sources

Solutions of the mass continuity equation in hollow fibers for fully developed flow with some notes on the Lévêque correlation

open access: yesCarbon Capture Science & Technology, 2022
: In this study a historical perspective of the mass continuity equation for fully developed laminar flow in the lumen side of a hollow-fiber membrane contactor is presented with respect to the lumen-wall boundary condition (BC).
Grigorios Pantoleontos   +3 more
doaj   +1 more source

Inductance of cylindrical coil [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2004
The cylindrical coreless and bar core coils are used in instrument transformers and many other electromagnetic devices. In the paper, using the separation of variables an analytical formula for the leakage inductance of thin cylindrical coil with ...
Cividjian G.A., Dolan A., Pãduraru N.
doaj   +1 more source

Shape invariance and SUSY separation of variables

open access: yesEPJ Web of Conferences, 2016
The main ingredients of conventional Supersymmetrical Quantum Mechanics (SUSY QM) are presented. The generalization with supercharges of second order in derivatives - Second Order SUSY - is formulated, and the property of shape invariance is defined. The
Ioffe M.V.   +2 more
doaj   +1 more source

Action-angle variables for the Lie–Poisson Hamiltonian systems associated with the Hirota–Satsuma modified Boussinesq equation

open access: yesFrontiers in Physics, 2023
In this work, we present two finite-dimensional Lie–Poisson Hamiltonian systems associated with the Hirota–Satsuma modified Boussinesq equation by using the nonlinearization method. Moreover, the separation of variables on the common level set of Casimir
Xue Geng, Dianlou Du, Xianguo Geng
doaj   +1 more source

Operator equations, separation of variables and relativistic alterations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
In this paper, a simple and unified method is developed that predicts the relativistic alterations of physical measures when the behavior of a natural system is characterized by means of a specific operator equation. Separation of variables is the simple
Robert A. Hermann
doaj   +1 more source

Large-signal averaged models of the non-ideal flyback converter derived by the separation of variables [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
The main topic of the paper is the large signal averaged model of a switch-mode flyback power converter. The use of the large-signal averaged models of switching converters allows for fast simulation of power systems.
W. Janke, M. Bączek, J. Kraśniewski
doaj   +1 more source

Supersymmetrical Separation of Variables in Two-Dimensional Quantum Mechanics

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2010
Two different approaches are formulated to analyze two-dimensional quantum models which are not amenable to standard separation of variables. Both methods are essentially based on supersymmetrical second order intertwining relations and shape invariance -
Mikhail V. Ioffe
doaj   +1 more source

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