Results 11 to 20 of about 1,278,562 (229)

Oblique derivative problems for second-order hyperbolic equations with degenerate curve [PDF]

open access: yesElectronic Journal of Differential Equations, 2011
The present article concerns the oblique derivative problem for second order hyperbolic equations with degenerate circle arc. Firstly the formulation of the oblique derivative problem for the equations is given, next the representation and estimates ...
Guo-Chun Wen
doaj   +1 more source

Backward difference replacements of the space derivative in first order hyperbolic equations [PDF]

open access: yes, 1983
Two families of two-time level difference schemes are developed for the numerical solution of first order hyperbolic partial differential equations with one space variable.
Khaliq, AQM, Twizell, EH
core   +6 more sources

Higher-order finite-difference methods for partial differential equations [PDF]

open access: yes, 1997
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis develops two families of numerical methods, based upon rational approximations having distinct real poles, for solving first- and second-order ...
Cheema, Tasleem Akhter
core   +7 more sources

Strongly interacting bumps for the schrodinger-newton equations [PDF]

open access: yes, 2009
We study concentrated bound states of the Schrodinger-Newton equations Moroz, Penrose and Tod proved the existence and uniqueness of ground states.
Winter, M, Wei, J
core   +6 more sources

Ergodicity for SDEs and approximations: Locally Lipschitz vector fields and degenerate noise [PDF]

open access: yes, 2002
The ergodic properties of SDEs, and various time discretizations for SDEs, are studied. The ergodicity of SDEs is established by using techniques from the theory of Markov chains on general state spaces, such as that expounded by Meyn-Tweedie ...
Stuart, A.M.   +2 more
core   +4 more sources

Nonlinear anisotropic degenerate parabolic-hyperbolic equations with stochastic forcing [PDF]

open access: yes, 2021
We are concerned with nonlinear anisotropic degenerate parabolic-hyperbolic equations with stochastic forcing, which are heterogeneous (i.e., not space-translational invariant).
Chen, Gui-Qiang G, Pang, Peter HC
core   +1 more source

Analysis and explicit solvability of degenerate tensorial problems

open access: yesBoundary Value Problems, 2018
We study a two-dimensional boundary value problem described by a tensorial equation in a bounded domain. Once its more general definition is given, we conclude that its analysis is linked to the resolution of an overdetermined hyperbolic problem and ...
Tongxing Li, Giuseppe Viglialoro
doaj   +1 more source

Mixed Cauchy problem with lateral boundary condition for noncharacteristic degenerate hyperbolic equations

open access: yesBoundary Value Problems, 2022
In this paper, in a cylindrical domain D = Ω × ( 0 , T ) $D=\Omega \times (0,T)$ with Ω ⊂ R n $\Omega \subset {R}^{n}$ , we consider a mixed Cauchy problem with a potential lateral boundary condition for the following noncharacteristic degenerated ...
Nurbek Kakharman, Tynysbek Kal’menov
doaj   +1 more source

A class of abstract quasi-linear evolution equations of second order [PDF]

open access: yes, 1999
In this paper we study the abstract quasi-linear evolution equation of second order formula here in a general banach space z. it is well-known that the abstract quasi-linear theory due to kato [10, 11] is widely applicable to quasi-linear partial ...
NAOKI TANAKA, Tanaka, Naoki
core   +1 more source

Dynamics of an impact oscillator near a degenerate graze [PDF]

open access: yes, 2010
We give a complete analysis of low-velocity dynamics close to grazingfor a generic one degree of freedom impact oscillator. This includes nondegenerate (quadratic) grazing and minimallydegenerate (cubic) grazing, corresponding respectively to ...
D R J Chillingworth   +2 more
core   +1 more source

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