Iteration scheme with errors for zero point of m - accretive mappings in banach space 增生映射零点的带误差项的迭代格式
The iteration scheme with errors for zero point of maximal monotone operator in hilbert space 赋范线性空间中一类算子的不动点逼近问题
We make a little modification for original iteration scheme and construct a series iteration method so as to improve the pseudo - symplecticity , even raise the pseudo - symplectic order 为此,我们对原有的迭代做一微小修改及构造了一个级数迭代方法,使得拟辛性得到改善,甚至拟辛阶获得了提高。
In this thesis , we present the research work about the pseudo - symplecticity of iteration schemes in implicit symplectic rk methods as well as the parallel waveform relaxation implementation theory for symplectic methods 本文主要研究了隐式辛rk算法迭代求解的拟辛理论及辛方法的波形松弛并行实现理论。
In order to solve two - dimension three - temperature energy equations over an irregular quadrangle grid , a lot of researches have been done in literature , and several different approaches have been proposed , such as five - point difference scheme , nine - point difference scheme , flux iteration scheme , finite element scheme , etc . up to now , the nine - point difference scheme is in general recognized as the better one and is used more generally 为了在不规则四边形网格上求解二维三温能量方程,长期以来人们已作了大量研究,先后提出了五点差分格式、九点差分格式、流迭代格式及有限元格式等等。迄今为止,人们公认较好且应用较广的是九点差分格式。
This dissertation investigates both existence of traveling wave solutions for delayed reaction diffusion systems and lattice differential equations , and global attractor of spatially discretized fitzhugh - nagumo equations with dirichlet or neumann boundary conditions . for delayed reaction diffusion systems , the existence of traveling wavefronts in diffusive and coorperative system with time delays is provided , firstly ; the monotone iteration scheme , together with upper - lower solution technique , is applied to establish the existence of traveling wavefronts of delayed reaction diffusion systems with some zero diffusive coefficients . secondly , schauder fixed point theorem is applied to some operators to prove the existence of traveling wave solutions in a properly subset equipped with exponential decay norm , which is obtained from a pair of upper and lower solutions for delayed reaction diffusion systems with non - quasimonotoiiicity 对于时滞反应扩散方程,我们先利用吴建宏和邹幸福[ j . dynam . diff . eqns2001 ( 3 ) ]中的主要定理来研究时滞竞争扩散lotka - volterra系统波前解的存在性,给出了这个定理在非线性项满足弱拟单调条件( qm * )时在系统情况中的应用;并利用单调迭代方法和上、下解技术,对于具有部分零扩散系数的时滞反应扩散方程建立波前解的存在性定理,对于具有部分零扩散系数的时滞反应扩散方程建立波前解的存在性定理。