Results 101 to 110 of about 96,126 (203)
Analytical study of time-fractional order Klein–Gordon equation
Alexandria Engineering Journal, 2016 In this article, we study an approximate analytical solution of linear and nonlinear time-fractional order Klein–Gordon equations by using a recently developed semi analytical method referred as fractional reduced differential transform method with ...
Mohammad Tamsir, Vineet K. Srivastava
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Existence of hylomorphic solitary waves in Klein–Gordon and in Klein–Gordon–Maxwell equations
Rendiconti Lincei, Matematica e Applicazioni, 2009 This paper is devoted to the study of solitary waves whose existence is related to the ratio energy/charge. These solitary waves are called hylomorphic. This class includes the Q -balls, which are spherically symmetric solutions of the nonlinear Klein–Gordon equation (NKG), as well as ...
BENCI, VIERI, FORTUNATO DONATO
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Electronic Journal of Differential Equations, 2014 Consider the Klein-Gordon equation with variable coefficients, a van der Pol cubic nonlinearity in one of the boundary conditions and a spatially distributed antidamping term, we use a variable-substitution technique together with the analogy with ...
Bo Sun, Tingwen Huang
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Thermal Nonlinear Klein-Gordon Equation for Nano-/Micro-Sized Metallic Particle-Attosecond Laser Pulse Interaction. [PDF]
Materials (Basel), 2021 Oane M +5 more
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Low regularity well-posedness for the one-dimensional Dirac - Klein - Gordon system
, 2006 Local well-posedness for the Dirac - Klein - Gordon equations is proven in one space dimension, where the Dirac part belongs to H^{-{1/4}+\epsilon} and the Klein - Gordon part to H^{{1/4}-\epsilon} for 0 < \epsilon < 1/4, and global well-posedness, if ...
Pecher, Hartmut
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Solitons in gauge theories: Existence and dependence on the charge
Advances in Nonlinear Analysis, 2014 In this paper we review recent results on the existence of non-topological solitons in classical relativistic nonlinear field theories. We follow the Coleman approach, which is based on the existence of two conservation laws, energy and charge.
Bonanno Claudio
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European Physical Journal C: Particles and Fields, 2018 Inspired by the Standard Model Extension, we have investigated a possible scenario arising from the Lorentz symmetry violation governed by a background tensor field on a scalar field subject to the Klein–Gordon oscillator, where this possible scenario ...
R. L. L. Vitória, H. Belich
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Spectral solutions for fractional Klein–Gordon models of distributed order
Alexandria Engineering JournalThe Klein–Gordon equation is a fundamental theoretical physics concept, governing the behavior of relativistic quantum particles with spin-zero. Its numerical solution is crucial in fields like quantum field theory, particle physics, and cosmology.
M.A. Abdelkawy +4 more
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Quantum scalar field on fuzzy de Sitter space. Part I. Field modes and vacua
Journal of High Energy PhysicsWe study a scalar field on a noncommutative model of spacetime, the fuzzy de Sitter space, which is based on the algebra of the de Sitter group SO(1, d) and its unitary irreducible representations. We solve the Klein-Gordon equation in d = 2, 4 and show,
Bojana Brkić +3 more
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Breather solutions of the cubic Klein–Gordon equation
Nonlinearity, 2020 Abstract We obtain real-valued, time-periodic and radially symmetric solutions of the cubic Klein–Gordon equation ∂ t
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