Results 11 to 20 of about 302,470 (301)

Separation of Variables and the Geometry of Jacobians [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
This survey examines separation of variables for algebraically integrable Hamiltonian systems whose tori are Jacobians of Riemann surfaces. For these cases there is a natural class of systems which admit separations in a nice geometric sense.
Jacques Hurtubise
doaj   +6 more sources

Separation of variables in the WZW models

open access: yesJournal of High Energy Physics, 2021
We consider dynamics of scalar and vector fields on gravitational backgrounds of the Wess-Zumino-Witten models. For SO(4) and its cosets, we demonstrate full separation of variables for all fields and find a close analogy with a similar separation of ...
Oleg Lunin, Jia Tian
doaj   +2 more sources

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   +3 more sources

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   +2 more sources

Symmetry Operators and Separation of Variables for Dirac's Equation on Two-Dimensional Spin Manifolds

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
A signature independent formalism is created and utilized to determine the general second-order symmetry operators for Dirac's equation on two-dimensional Lorentzian spin manifolds. The formalism is used to characterize the orthonormal frames and metrics
Alberto Carignano   +3 more
doaj   +2 more sources

Upper-division student difficulties with separation of variables

open access: yesPhysical Review Special Topics. Physics Education Research, 2015
Separation of variables can be a powerful technique for solving many of the partial differential equations that arise in physics contexts. Upper-division physics students encounter this technique in multiple topical areas including electrostatics and ...
Bethany R. Wilcox, Steven J. Pollock
doaj   +2 more sources

Solutions of Helmholtz and Schrödinger Equations with Side Condition and Nonregular Separation of Variables [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
Olver and Rosenau studied group-invariant solutions of (generally nonlinear) partial differential equations through the imposition of a side condition. We apply a similar idea to the special case of finite-dimensional Hamiltonian systems, namely Hamilton-
Philip Broadbridge   +2 more
doaj   +2 more sources

Variables Separation in Gravity [PDF]

open access: yesProceedings of Fourth International Winter Conference on Mathematical Methods in Physics — PoS(WC2004), 2004
8 pages. In proceedings of 4th International Winter Conference on Mathematical Methods in Physics (WC 2004), Rio de Janeiro, Brazil, 9-13 Aug ...
Obukhov, Valery V.   +1 more
openaire   +2 more sources

Maxwell’s Equations in Homogeneous Spaces for Admissible Electromagnetic Fields

open access: yesUniverse, 2022
Maxwell’s vacuum equations are integrated for admissible electromagnetic fields in homogeneous spaces. Admissible electromagnetic fields are those for which the space group generates an algebra of symmetry operators (integrals of motion) that is ...
Valery V. Obukhov
doaj   +1 more source

Cartesian Operator Factorization Method for Hydrogen

open access: yesAtoms, 2022
We generalize Schrödinger’s factorization method for Hydrogen from the conventional separation into angular and radial coordinates to a Cartesian-based factorization.
Xinliang Lyu   +2 more
doaj   +1 more source

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