Exploring the metric, Klein-Gordon operator, and spinors in a 10-space-time octonion extension of dirac theory

1993 ◽  
Vol 108 (1) ◽  
pp. 95-98
Author(s):  
J. D. Edmonds
Keyword(s):  
Space Time ◽  
Dirac Theory ◽  
Klein Gordon

scholarly journals CONDITIONAL LARGE INITIAL DATA SCATTERING RESULTS FOR THE DIRAC–KLEIN–GORDON SYSTEM

2018 ◽  
Vol 6 ◽  
Author(s):  
TIMOTHY CANDY ◽  
SEBASTIAN HERR
Keyword(s):  
Initial Data ◽  
Space Time ◽  
Bounded Solutions ◽  
Large Initial Data ◽  
Critical Spaces ◽  
Crucial Step ◽  
Global Behaviour ◽  
Large Solutions ◽  
Klein Gordon

We consider the global behaviour for large solutions of the Dirac–Klein–Gordon system in critical spaces in dimension $1+3$. In particular, we show that bounded solutions exist globally in time and scatter, provided that a controlling space–time Lebesgue norm is finite. A crucial step is to prove nonlinear estimates that exploit the dichotomy between transversality and null structure, and furthermore involve the controlling norm.

scholarly journals Klein Gordon Field in FLRW Space-Time

2020 ◽  
Vol 13 (13) ◽  
pp. 1-4
Author(s):  
S.K. Sharma ◽  
P.R. Dhungel ◽  
U. Khanal
Keyword(s):  
Spherical Harmonics ◽  
Energy Momentum Tensor ◽  
Equation Of Motion ◽  
Momentum Tensor ◽  
Space Time ◽  
Wkb Approximation ◽  
Temporal Parts ◽  
Klein Gordon ◽  
Current Energy ◽  
Particle Current

As a continuation of solving the equations governing the perturbation of the Friedmann-Lemaitre-Robertson- Walker (FLRW) space-time in Newman-Penrose formalism, the behaviour of the massive Klein-Gordon (KG) field coupled to the FLRW has been investigated. The Equation of Motion has been written and solved separately for radial and temporal parts. The former solution has come to be in terms of the Gegenbauer polynomials and spherical harmonics and the latter being in the WKB approximation. The particle current, energy momentum tensor and potential have also been obtained.

Global solutions of quasilinear wave-Klein–Gordon system in two-space dimension: Completion of the proof

2017 ◽  
Vol 14 (04) ◽  
pp. 627-670 ◽  
Author(s):  
Yue Ma
Keyword(s):  
Global Existence ◽  
Space Dimension ◽  
Global Solutions ◽  
Space Time ◽  
Time Dimension ◽  
Regular Solutions ◽  
Complete Proof ◽  
Klein Gordon

Based on the first part, we give a complete proof of the global existence of small regular solutions to a type of quasilinear wave-Klein–Gordon system with null couplings in [Formula: see text] space-time dimension.

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