A stability analysis of the static Einstein‐Klein‐Gordon Boson Stars
Sign Up to like & getrecommendations! Published in 2021 at "Astronomische Nachrichten"
DOI: 10.1002/asna.202113911
Abstract: The stability of the recently proposed static solutions for boson stars is analyzed. These solutions of Einstein‐Klein‐Gordon (EKG) equations are obtained by considering the interaction of a real scalar field with matter. We assume that… read more here.
Keywords: einstein klein; stability; klein gordon; matter ... See more keywords
Asymptotic profile of solutions for strongly damped Klein‐Gordon equations
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DOI: 10.1002/mma.5508
Abstract: We consider the Cauchy problem in the whole space for strongly damped Klein-Gordon equations. We derive asymptotic profles of solutions with weighted initial data by a simple method introduced by R. Ikehata. The obtained results… read more here.
Keywords: profile solutions; strongly damped; klein gordon; asymptotic profile ... See more keywords
When is the energy of the 1D damped Klein-Gordon equation decaying?
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DOI: 10.1007/s00208-018-1725-5
Abstract: We study time decay of the energy for the one dimensional damped Klein-Gordon equation. We give an explicit necessary and sufficient condition on the continuous damping function $$\gamma \ge 0$$γ≥0 for which the energy $$\begin{aligned}… read more here.
Keywords: energy; gordon equation; klein gordon; damped klein ... See more keywords
Averaging Principle for Multiscale Stochastic Klein–Gordon-Heat System
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DOI: 10.1007/s00332-019-09529-4
Abstract: This paper investigates multiscale stochastic Klein–Gordon-heat system. We establish the well-posedness and two kinds of stochastic averaging principle for stochastic Klein–Gordon-heat system with two timescales. To be more precise, under suitable conditions, two kinds of… read more here.
Keywords: stochastic klein; system; klein gordon; gordon heat ... See more keywords
A high-order nonlinear Schrödinger equation as a variational problem for the averaged Lagrangian of the nonlinear Klein–Gordon equation
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DOI: 10.1007/s11071-019-05197-x
Abstract: We use Whitham’s averaged Lagrangian method extended with the multiple-scale formalism to derive a sixth-order nonlinear Schrodinger equation for the complex amplitude of the envelope of the slowly modulated wave trains whose evolution is governed… read more here.
Keywords: nonlinear klein; gordon equation; klein gordon; equation ... See more keywords
A linearized second-order scheme for nonlinear time fractional Klein-Gordon type equations
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DOI: 10.1007/s11075-017-0385-y
Abstract: We consider difference schemes for nonlinear time fractional Klein-Gordon type equations in this paper. A linearized scheme is proposed to solve the problem. As a result, iterative method need not be employed. One of the… read more here.
Keywords: gordon type; time fractional; time; fractional klein ... See more keywords
A linearized high-order Galerkin finite element approach for two-dimensional nonlinear time fractional Klein-Gordon equations
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DOI: 10.1007/s11075-020-00978-7
Abstract: In this paper, we propose a linearized finite element method for solving two-dimensional fractional Klein-Gordon equations with a cubic nonlinear term. The employed time discretization is a weighted combination of the L2 − 1σ formula… read more here.
Keywords: finite element; fractional klein; time; klein gordon ... See more keywords
Dynamical Behavior of Singular Traveling Waves of ($$\hbox {n}+1$$n+1)-Dimensional Nonlinear Klein-Gordon Equation
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DOI: 10.1007/s12346-018-0285-0
Abstract: This work researches the singular traveling wave system of the ($$\hbox {n}+1$$n+1)-dimensional nonlinear Klein-Gordon equation via the bifurcation theory of dynamical systems. The bifurcations and phase portraits of the traveling wave system are investigated and… read more here.
Keywords: singular traveling; hbox dimensional; klein gordon; dimensional nonlinear ... See more keywords
Statistical aspects of the Klein–Gordon oscillator in the frame work of GUP
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DOI: 10.1007/s12648-017-1070-7
Abstract: Investigation in perturbative string theory and quantum gravity suggest that there is a measurable minimal length in nature. In this work, according to generalized uncertainty principle, we study the statistical characteristics of Klein–Gordon Oscillator (KLO).… read more here.
Keywords: work; gordon oscillator; aspects klein; klein gordon ... See more keywords
Almost global existence for the semi-linear Klein–Gordon equation on the circle
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DOI: 10.1016/j.jde.2016.12.013
Abstract: Abstract We show that the solution to the semi-linear Klein–Gordon equation on the circle with a nonlinearity satisfying a convenient condition, exists almost globally, for almost every positive mass, provided that it is either even… read more here.
Keywords: gordon equation; linear klein; semi linear; klein gordon ... See more keywords
Coupled Lane-Emden-Klein-Gordon-Fock system with central symmetry: symmetries and conservation laws
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DOI: 10.1016/j.jde.2017.08.044
Abstract: Abstract A complete symmetry group classification of a coupled Lane–Emden–Klein–Gordon–Fock system with central symmetry is carried out. This system is a natural two-components generalization of the Klein–Gordon–Fock system with central symmetry. Moreover, conservation laws for… read more here.
Keywords: system central; system; klein gordon; fock system ... See more keywords