Results 51 to 60 of about 221 (109)

Propagation of c°° regularity for fully nonlinear second order strictly hyperbolic equations in two variables

open access: yes, 1985
It is shown that if u is a C3 solution of a fully nonlinear second order strictly hyperbolic equation in two variables, then u is C∞ at a point m as soon as it is C∞ at some point of each of the two bicharacteristic curves through m.
Godin, Paul, Paul Godin
core   +1 more source

On the existence of low regularity solutions to semilinear generalized Tricomi equations in mixed type domains

open access: yes, 2015
In [20,21], we have established the existence and singularity structures of low regularity solutions to the semilinear generalized Tricomi equations in the degenerate hyperbolic regions and to the higher order degenerate hyperbolic equations ...
Yin, Huicheng   +2 more
core   +1 more source

Hopf bifurcation in a gene regulatory network model : molecular movement causes oscillations [PDF]

open access: yes, 2014
M.A.J.C. and M.S. gratefully acknowledge the support of the ERC Advanced Investigator Grant 227619, “M5CGS — From Mutations to Metastases: Multiscale Mathematical Modelling of Cancer Growth and Spread”. M.S.
Ptashnyk, Mariya   +10 more
core   +1 more source

On the mixed problem for hyperbolic partial differential-functional equations of the first order [PDF]

open access: yes, 1999
summary:We consider the mixed problem for the hyperbolic partial differential-functional equation of the first order \[ D_xz(x,y) = f(x,y,z_{(x,y)}, D_yz(x,y)), \] where $z_{(x,y)} \: [-\tau ,0] \times [0,h] \rightarrow \mathbb{R}$ is a function defined ...
Człapiński, Tomasz
core   +1 more source

Finite element solutions to boundary value problems

open access: yes, 1976
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis consists of two distinct parts which deal with two-point boundary value problems and parabolic problems, respectively.
Moore, P
core  

Controllability for systems governed by semilinear evolution equations without compactness

open access: yes, 2014
We study the controllability for a class of semilinear differential inclusions in Banach spaces. Since we assume the regularity of the nonlinear part with respect to the weak topology, we do not require the compactness of the evolution operator generated
Benedetti, Irene   +2 more
core   +1 more source

Problem of Optimal Control for a Semilinear Hyperbolic System of Equations of the First Order with Infinite Horizon Planning

open access: yes, 2015
Установлены необходимые условия для задачи оптимального управления полулинейной гиперболической системой. Сопряженная задача к исходной является полулинейной гиперболической задачей без начальных условий.
Дерев'янко, Н.В.   +1 more
core  

Convergence of a second-order scheme for semilinear hyperbolic equations in 2+1 dimensions

open access: yes, 1991
A second-order energy-preserving scheme is studied for the solution of the semilinear Cauchy Problem u t t − u
Jack Schaeffer, Robert Glassey
core   +1 more source

Wave equations with memory: the minimal state approach

open access: yes, 2011
Recently, in M. Conti et al. (2010) [6] and M. Fabrizio et al. (2010) [12], a new theoretical scheme has been developed in order to study equations with memory, the so-called minimal state approach.
CONTI, MONICA   +4 more
core   +1 more source

Gehring theory for time-discrete hyperbolic differential equations [PDF]

open access: yes, 1998
summary:This paper is concerned with extending Gehring theory to be applicable to Rothe's approximate solutions to hyperbolic differential ...
Kikuchi, N., Hoshino, K.
core  

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