Results 11 to 20 of about 198,923 (186)
Group Classification and Conservation Laws of a Class of Hyperbolic Equations
Abstract and Applied Analysis, 2021 s. A method for the group classification of differential equations is proposed. It is based on the determination of all possible cases of linear dependence of certain indeterminates appearing in the determining equations of symmetries of the equation ...
J. C. Ndogmo
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SIAC Filtering for Nonlinear Hyperbolic Equations [PDF]
, 2015 We present the results of the symmetric and one-sided Smoothness-Increasing Accuracy-Conserving (SIAC) filter applied to a discontinuous Galerkin (DG) approximation for two examples of nonlinear hyperbolic conservation laws.
Li, Xiaozhou, Ryan, Jennifer
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A Direct Meshless Method for Solving Two-Dimensional Second-Order Hyperbolic Telegraph Equations
Journal of Mathematics, 2020 In this paper, a direct meshless method (DMM), which is based on the radial basis function, is developed to the numerical solution of the two-dimensional second-order hyperbolic telegraph equations.
Fuzhang Wang, Enran Hou
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Fixing Einstein's equations [PDF]
, 1999 Einstein's equations for general relativity, when viewed as a dynamical system for evolving initial data, have a serious flaw: they cannot be proven to be well-posed (except in special coordinates).
Anderson, Arlen, York, Jr, James W.
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Қарағанды университетінің хабаршысы. Математика сериясы, 2018 The periodic boundary value problem for the system of hyperbolic equations with delayed argument is considered. By method of introduction a new functions the investigated problem reduce to an equivalent problem, consisting the family of periodic ...
A.T. Assanova +2 more
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Journal of Mathematics, 2013 We firstly give some new functions called generalized hyperbolic functions. By the using of the generalized hyperbolic functions, new kinds of transformations are defined to discover the exact approximate solutions of nonlinear partial differential ...
Yusuf Pandir, Halime Ulusoy
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An Internal Observability Estimate for Stochastic Hyperbolic Equations [PDF]
, 2016 This paper is addressed to establishing an internal observability estimate for some linear stochastic hyperbolic equations. The key is to establish a new global Carleman estimate for forward stochastic hyperbolic equations in the $L^2$-space.
Fu, Xiaoyu, Liu, Xu, Lu, Qi, Zhang, Xu
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Hyperbolic differential-operator equations on a whole axis
Abstract and Applied Analysis, 2004 We give an abstract interpretation of initial boundary value problems for hyperbolic equations such that a part of initial boundary value conditions contains also a differentiation on the time t of the same order as equations.
Yakov Yakubov
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Correct conditions on the boundary separating subdomains [PDF]
Компьютерные исследования и моделирование, 2014 This paper presents definition and solution problem of correct conditions on the boundary, separating subdomains for hyperbolic linear equation systems.
Yuri I. Skalko
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Constraints as evolutionary systems [PDF]
, 2015 The constraint equations for smooth $[n+1]$-dimensional (with $n\geq 3$) Riemannian or Lorentzian spaces satisfying the Einstein field equations are considered.
Rácz, István
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