首页> 外文会议>IASTED (the International Association of Science and Technology for Development) International Conference on Signal Processing, Pattern Recognition, and Application, Jun 25-28, 2002, Crete, Greece >WAVELET-BASED SOLUTION TO TIME-DEPENDENT TWO-POINT INITIAL BOUNDARY VALUE PROBLEMS WITH NON-PERIODIC BOUNDARY CONDITIONS INVOLVING HYPERBOLIC EQUATIONS
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WAVELET-BASED SOLUTION TO TIME-DEPENDENT TWO-POINT INITIAL BOUNDARY VALUE PROBLEMS WITH NON-PERIODIC BOUNDARY CONDITIONS INVOLVING HYPERBOLIC EQUATIONS

机译:具有双周期方程的非周期边界条件的时变两点初始边界值问题的小波解

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The Wavelet solution for boundary-value problems is relatively new and has been mainly restricted to the solutions in data compression, image processing and recently to the solution of differential equations with periodic boundary conditions. This paper is concerned with the wavelet-based Galerkin's solution to time dependent two-point initial-boundary-value problems in Hyperbolic Equations with non-periodic boundary conditions. The wavelet method can offer several advantages in solving the initial-boundary-value problems than the traditional methods such as Fourier series, Finite Differences and Finite Elements by reducing the computational time near singularities because of its multi-resolution character. In order to demonstrate the wavelet technique to non-periodic initial-boundary-value-problems, we extend our prior research of solution of parabolic problems to a hyperbolic problem. The results of the wavelet solution are examined and they are found to compare favorably to the exact solution. This paper on the whole indicates that the wavelet technique is a strong contender for an approximate solution to two point initial boundary value problems in hyperbolic equations with non-periodic conditions.
机译:边值问题的小波解相对较新,并且主要局限于数据压缩,图像处理和最近具有周期边界条件的微分方程的解。本文关注的是基于小波的Galerkin解决非周期边界条件的双曲型方程中与时间有关的两点初始边值问题的方法。与传统方法(例如傅立叶级数,有限差分和有限元)相比,小波方法由于具有多分辨率特性,因此可以减少计算时间,使其比奇异点具有更多优势。为了证明小波技术对非周期初始边界值问题的影响,我们将抛物线问题的现有研究扩展到双曲线问题。检查了小波解的结果,发现它们与精确解具有可比性。总体而言,本文表明小波技术是非周期条件下双曲方程中两点初始边值问题近似解的有力竞争者。

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