Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Xiaokai He"'
Publikováno v:
Mathematics, Vol 12, Iss 16, p 2474 (2024)
In this paper, we consider the generalized sine-Gordon equation ψtx=(1+a∂x2)sinψ and the sinh-Poisson equation uxx+uyy+σsinhu=0, where a is a real parameter, and σ is a positive parameter. Under different conditions, e.g., a=0, a≠0, and σ>0,
Externí odkaz:
https://doaj.org/article/49f1972aa3094f58929386775ecd4ebf
Publikováno v:
Physics Letters B, Vol 847, Iss , Pp 138313- (2023)
It is well known that energy fluxes will produce gravitational wave memory. The gravitational wave memory produced by background including cosmic microwave background (CMB), cosmic neutrino background (CνB), and gravitational wave background is inve
Externí odkaz:
https://doaj.org/article/4bf7976f251f431f96c8526f2618a0f2
Publikováno v:
Physics Letters B, Vol 844, Iss , Pp 138108- (2023)
Since the first detection of gravitational waves, they have been used to investigate various fundamental problems, including the variation of physical constants. Regarding the gravitational constant, previous works focused on the effect of the gravit
Externí odkaz:
https://doaj.org/article/bd83c964c3d64c62a6d4a545634b2778
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 9, Pp 1-10 (2021)
Abstract Effective-one-body (EOB) theory based on the post-Newtonian (PN) approximation presented by Buonanno and Damour plays an important role in the analysis of gravitational wave signals. Based on the post-Minkowskian (PM) approximation, Damour i
Externí odkaz:
https://doaj.org/article/5dc4698dbb764667971384a35fa3c95a
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 1, Pp 1-12 (2021)
Abstract Effective-one-body (EOB) theory was originally proposed based on the post-Newtonian (PN) approximation and plays an important role in the analysis of gravitational wave signals. Recently, the post-Minkowskian (PM) approximation has been appl
Externí odkaz:
https://doaj.org/article/9ffe1eddfa7e497e9c04445ba8ffad8d
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 8, Pp 1-16 (2018)
Abstract We investigate the stability criterions for perfect fluid in f(R) theories which is an important generalization of general relativity. Firstly, using Wald’s general variation principle, we recast Seifert’s work and obtain the dynamical s
Externí odkaz:
https://doaj.org/article/6320129b0cf9450393213a4fd823c94f
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 12, Pp 1-8 (2017)
Abstract According to the maximum entropy principle, it has been proved that the gravitational field equations could be derived by the extrema of the total entropy for a perfect fluid, which implies that thermodynamic relations contain information as
Externí odkaz:
https://doaj.org/article/b34e2e7f9c8242799844d4f9020ea38e
Autor:
Xiaokai He, Xu Xu
Publikováno v:
Calculus of Variations and Partial Differential Equations. 62
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a72dfc885a3ffe64e523c9a84f3e4047
https://doi.org/10.1007/s00526-023-02502-w
https://doi.org/10.1007/s00526-023-02502-w
Publikováno v:
Applied Mathematics Letters. 144:108717
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3a8eeae8897fe5fbd3ad1e81394b3c5
https://doi.org/10.1016/j.aml.2023.108717
https://doi.org/10.1016/j.aml.2023.108717
Gravitational wave memory is an important prediction of general relativity. The detection of the gravitational wave memory can be used to test general relativity and to deduce the property of the gravitational wave source. Quantitative model is impor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7eaa65937f8f884bf2b39d797e70fcc
http://arxiv.org/abs/2302.02642
http://arxiv.org/abs/2302.02642
