Results 21 to 30 of about 5,942 (275)

Why the Hamilton Operator Alone Is not Enough [PDF]

open access: yesFoundations of Physics, 2009
In the many worlds community seems to exist a belief that the physics of a quantum theory is completely defined by it's Hamilton operator given in an abstract Hilbert space, especially that the position basis may be derived from it as preferred using decoherence techniques. We show, by an explicit example of non-uniqueness, taken from the theory of the
openaire   +2 more sources

HAMILTON OPERATORS, DISCRETE SYMMETRIES, BRUTE FORCE AND SYMBOLICC++ [PDF]

open access: yesInternational Journal of Modern Physics C, 2013
To find the discrete symmetries of a Hamilton operator Ĥ is of central importance in quantum theory. Here, we describe and implement a brute force method to determine the discrete symmetries given by permutation matrices for Hamilton operators acting in a finite-dimensional Hilbert space. Spin and Fermi systems are considered as examples.
Steeb, Willi-Hans, Hardy, Yorick
openaire   +2 more sources

Nonsquare Spectral Factorization for Nonlinear Control Systems [PDF]

open access: yes, 2005
This paper considers nonsquare spectral factorization of nonlinear input affine state space systems in continuous time. More specifically, we obtain a parametrization of nonsquare spectral factors in terms of invariant Lagrangian submanifolds and ...
Schaft, Arjan J. van der   +4 more
core   +1 more source

On the eigenfunction expansion for Hamilton operators

open access: yesJournal of Spectral Theory, 2015
A spectral representation for solutions to linear Hamilton equations with nonnegative energy in Hilbert spaces is obtained. This paper continues our previous work on Hamilton equations with positive definite energy. Our approach is a special version of M. Krein's spectral theory of J
Komech, Alexander, Kopylova, Elena
openaire   +3 more sources

Morphological PDEs on Graphs for Image Processing on Surfaces and Point Clouds

open access: yesISPRS International Journal of Geo-Information, 2016
Partial Differential Equations (PDEs)-based morphology offers a wide range of continuous operators to address various image processing problems. Most of these operators are formulated as Hamilton–Jacobi equations or curve evolution level set and ...
Abderrahim Elmoataz   +2 more
doaj   +1 more source

A Unified Quantization of Gravity and Other Fundamental Forces of Nature

open access: yesUniverse, 2022
We quantized the interaction of gravity with Yang–Mills and spinor fields; hence, offering a quantum theory incorporating all four fundamental forces of nature.
Claus Gerhardt
doaj   +1 more source

On the eigenfunction expansion for the Hamilton operators

open access: yesJournal of Spectral Theory, 2014
A spectral representation for solutions to linear Hamilton equations with nonnegative energy in Hilbert spaces is obtained. This paper continues our previous work on Hamilton equations with positive definite energy. Our approach is a special version of M. Krein's spectral theory of $J$-selfadjoint operators in Hilbert spaces with indefinite metric.
Komech, Alexander, Kopylova, Elena
openaire   +3 more sources

On local spectral properties of extended Hamilton operators

open access: yesFilomat, 2022
This paper deals with local spectral properties of Extended Hamilton operators and their adjoint operators. The relationship between the local spectral properties (strongly decomposability, hyperinvariant subspace problem, etc.) of Extended Hamilton operators and the corresponding properties of their adjoint operators is obtained.
Wurichaihu Bai, Alatancang Chen
openaire   +1 more source

TOWARD THE QUANTIZATION OF BLACK HOLES

open access: yesOdessa Astronomical Publications, 2016
In order to construct a quantum model of black hole (BH), we introduce a modified description of classical space-time BH (the Schwarzschild solution). We develop the Lagrangian formalism of the vacuum gravitational field in spherically symmetric space ...
V. D. Gladush
doaj   +1 more source

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

Home - About - Disclaimer - Privacy