Results 41 to 50 of about 96,126 (203)

Gauge Invariance of Nonlinear Klein-Gordon

open access: yesPositron, 2013
We have discussed the gauge invariance of nonlinear Klein-Gordon equation which describes the interaction of electromagnetic initially proposed by Hermann Weyl. The construction of nonlinear Klein-Gordon itself is formulated by two classical conservation
T. B. Prayitno
doaj   +1 more source

Strichartz estimates for orthonormal families of initial data and weighted oscillatory integral estimates

open access: yesForum of Mathematics, Sigma, 2021
We establish new Strichartz estimates for orthonormal families of initial data in the case of the wave, Klein–Gordon and fractional Schrödinger equations.
Neal Bez, Sanghyuk Lee, Shohei Nakamura
doaj   +1 more source

The Klein-Gordon Equation

open access: yesJOURNAL OF ADVANCES IN PHYSICS, 2017
Two solutions to the Klein-Gordon equation are found. The existence of a maximum relativistic correction of 2 is thus indicated. The normal relativistic correction is given by the usual solution. A certain Hilbert Space is used to find the solutions using a group theory taught at LSU and the Texas Method of Math also taught at LSU.
openaire   +1 more source

Klein-Gordon Equations on Modulation Spaces [PDF]

open access: yesAbstract and Applied Analysis, 2014
We consider the Cauchy problem for a family of Klein-Gordon equations with initial data in modulation spacesMp,1a. We develop the well-posedness, blowup criterion, stability of regularity, scattering theory, and stability theory.
Zhao, Guoping   +2 more
openaire   +4 more sources

Photon‐Sphere Modes in Curved Optical Microcavities: A Black‐Hole Analogue Laser

open access: yesAdvanced Science, EarlyView.
An optical analogue of a Schwarzschild black hole is realized using curved microcavities that preserve light‐like geodesics. A new family of laser modes confined around the photon sphere is identified alongside conventional whispering‐gallery modes. Analytical theory, numerical simulations, and experiments reveal curvature‐induced confinement, enabling
Chenni Xu   +9 more
wiley   +1 more source

Approximate Analytical Solutions of the Klein-Gordon Equation for Hulthen Potential with Position-Dependent Mass

open access: yes, 2008
The Klein-Gordon equation is solved approximately for the Hulth\'{e}n potential for any angular momentum quantum number $\ell$ with the position-dependent mass.
Arda, Altug   +2 more
core   +1 more source

Planar Binary Trees and Perturbative Calculus of Observables in Classical Field Theory [PDF]

open access: yes, 2005
Consider the Klein-Gordon equation coupled with an interaction term $(\Box+m^2)\phi+\lambda\psi^p$. For the linear Klein-Gordon equation, a kind of generalized Noether's theorem gives us a conserved quantity.
Harrivel, Dikanaina
core   +3 more sources

Environmental, Social, and Governance Factors as Tools for Improving Market Efficiency: A Study on Equity Misvaluation

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study investigated whether superior environmental, social, and governance (ESG) practices enhance corporate value and market efficiency under various economic theories. Using a multi‐country panel of 31 economies from 2015 to 2022, we find that both ESG performance and disclosure improve intrinsic value and mitigate equity misvaluation ...
Xinyu Wang   +5 more
wiley   +1 more source

AdS. Klein-Gordon equation [PDF]

open access: yes, 2014
I propose a generalization of the Klein-Gordon equation in the framework of AdS space-time and exhibit a four parameter family of solutions among which there is a two parameter family of time-dependent bound states.Comment: 6 pages, 2 figures,typos ...
Bel, Ll.
core  

On Inverse Scattering for the Klein-Gordon Equation [PDF]

open access: yesTransactions of the American Mathematical Society, 1972
A scattering operator S = S ( V ) S = S(V) is set up for the Klein-Gordon equation ◻ u = m 2 u ( m > 0 ) \square u = {m^2}u(m > 0) perturbed ...
openaire   +2 more sources

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