Results 81 to 90 of about 12,187,697 (193)
Decay of the Weyl curvature in expanding black hole cosmologies. [PDF]
Ann PDE, 2022 Schlue V.
europepmc +1 more source
On the Levi condition for Goursat problem
Kyoto Journal of Mathematics, 1987 The author treats the following differential operator \[ (1)\quad P(D_ t,D_ x,D_ y)=\sum^{m}_{j=\ell}C_ j(D_ x,D_ y)D_ t^{m- j}=P_ m+\sum^{m}_{k=1}P_{m-k}, \] where \(C_ j(\zeta,\eta)\) is a polynomial with constant coefficients of order \(\leq j\), and \(P_ j\) is a homogeneous part of degree j of P. Let \[ P_ m(\tau,\zeta,\eta)=\prod^{n'}_{j=1}(\zeta
openaire +3 more sources
Sibirskie Elektronnye Matematicheskie Izvestiya, 2021 B. Islomov, Y. Alikulov
semanticscholar +1 more source
Qualitative analysis of fourth-order hyperbolic equations
Frontiers in Applied Mathematics and StatisticsWe investigate the qualitative properties of weak solutions to the boundary value problems for fourth-order linear hyperbolic equations with constant coefficients in a plane bounded domain convex with respect to characteristics.
Yuliia Andreieva +2 more
doaj +1 more source
Exponential node clustering at singularities for rational approximation, quadrature, and PDEs. [PDF]
Numer Math (Heidelb), 2021 Trefethen LN +2 more
europepmc +1 more source
Adomian Decomposition Method for Solving Goursat's Problems
Applied Mathematics, 2011 In this paper, Goursat’s problems for: linear and nonlinear hyperbolic equations of second-order, systems of nonlinear hyperbolic equations and fourth-order linear hyperbolic equations in which the attached conditions are given on the characteristics curves are transformed in such a manner that the Adomian decomposition method (ADM) can be applied ...
openaire +2 more sources
Studying a system of non-local condition hyperbolic equations
Қарағанды университетінің хабаршысы. Математика сериясыLocal boundary value problems for hyperbolic differential equations have been studied in considerable detail. However, the mathematical modeling of a number of real-world processes leads to nonlocal boundary value problems involving nonlinear hyperbolic
Y.A. Sharifov, A.R. Mammadli
doaj +1 more source