Theory and Applications of Fractional Differential Equations

Theory and Applications of Fractional Differential Equations pdf epub mobi txt 电子书 下载 2026

出版者:Elsevier Science Ltd
作者:Kilbas, Anatoly A./ Srivastava, Hari M./ Trujillo, Juan J.
出品人:
页数:540
译者:
出版时间:2006-2
价格:$ 209.05
装帧:HRD
isbn号码:9780444518323
丛书系列:North-Holland Mathematics Studies
图书标签:
  • Fractional calculus
  • Differential equations
  • Mathematical analysis
  • Applied mathematics
  • Engineering mathematics
  • Physics
  • Control theory
  • Numerical analysis
  • Mathematical modeling
  • Partial differential equations
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具体描述

This monograph provides the most recent and up-to-date developments on fractional differential and fractional integro-differential equations involving many different potentially useful operators of fractional calculus.

The subject of fractional calculus and its applications (that is, calculus of integrals and derivatives of any arbitrary real or complex order) has gained considerable popularity and importance during the past three decades or so, due mainly to its demonstrated applications in numerous seemingly diverse and widespread fields of science and engineering.

Some of the areas of present-day applications of fractional models include Fluid Flow, Solute Transport or Dynamical Processes in Self-Similar and Porous Structures, Diffusive Transport akin to Diffusion, Material Viscoelastic Theory, Electromagnetic Theory, Dynamics of Earthquakes, Control Theory of Dynamical Systems, Optics and Signal Processing, Bio-Sciences, Economics, Geology, Astrophysics, Probability and Statistics, Chemical Physics, and so on.

In the above-mentioned areas, there are phenomena with estrange kinetics which have a microscopic complex behaviour, and their macroscopic dynamics can not be characterized by classical derivative models.

The fractional modelling is an emergent tool which use fractional differential equations including derivatives of fractional order, that is, we can speak about a derivative of order 1/3, or square root of 2, and so on. Some of such fractional models can have solutions which are non-differentiable but continuous functions, such as Weierstrass type functions. Such kinds of properties are, obviously, impossible for the ordinary models.

What are the useful properties of these fractional operators which help in the modelling of so many anomalous processes? From the point of view of the authors and from known experimental results, most of the processes associated with complex systems have non-local dynamics involving long-memory in time, and the fractional integral and fractional derivative operators do have some of those characteristics.

This book is written primarily for the graduate students and researchers in many different disciplines in the mathematical, physical, engineering and so many others sciences, who are interested not only in learning about the various mathematical tools and techniques used in the theory and widespread applications of fractional differential equations, but also in further investigations which emerge naturally from (or which are motivated substantially by) the physical situations modelled mathematically in the book.

This monograph consists of a total of eight chapters and a very extensive bibliography. The main objective of it is to complement the contents of the other books dedicated to the study and the applications of fractional differential equations. The aim of the book is to present, in a systematic manner, results including the existence and uniqueness of solutions for the Cauchy type problems involving nonlinear ordinary fractional differential equations, explicit solutions of linear differential equations and of the corresponding initial-value problems through different methods, closed-form solutions of ordinary and partial differential equations, and a theory of the so-called sequential linear fractional differential equations including a generalization of the classical Frobenius method, and also to include an interesting set of applications of the developed theory.

Key features:

- It is mainly application oriented. - It contains a complete theory of Fractional Differential Equations. - It can be used as a postgraduate-level textbook in many different disciplines within science and engineering. - It contains an up-to-date bibliography. - It provides problems and directions for further investigations. - Fractional Modelling is an emergent tool with demonstrated applications in numerous seemingly diverse and widespread fields of science and engineering. - It contains many examples. - and so on!

《非线性动力学中的奇异扰动问题研究》 作者: [此处可填入一位假设的、专注于该领域的资深学者的姓名,例如:张维明] 出版社: [此处可填入一家严肃的学术出版社名称,例如:科学出版社/Springer-Verlag] 出版年份: [此处可填入一个近期的年份,例如:2023] --- 内容简介 本书聚焦于现代数学物理和工程科学中一个历经数十年锤炼、至今仍充满活力的核心课题——奇异扰动理论(Singular Perturbation Theory, SPT)在处理高度非线性动力学系统时的应用与深化。奇异扰动问题本质上是描述系统在不同时间尺度(快变模式与慢变模式)相互作用下行为的数学模型,其挑战性在于传统微积分方法在这些尺度边界处失效。 本书并非对经典奇异扰动理论的简单复述,而是将目光投向那些缺乏明确小参数 $varepsilon$ 依赖,但系统结构本身暗示着多尺度分离的复杂非线性方程。通过引入和发展新的分析工具,本书旨在提供一套严谨且实用的框架,用于理解和预测复杂系统的瞬态行为、稳态解的稳定性以及全局分岔现象。 第一部分:多尺度系统的结构分解与基础理论重构 本部分首先回顾了奇异扰动理论的经典范式(如准稳态近似、边界层方法),随后迅速过渡到对复杂系统结构本质的探讨。 1.1 系统的内在尺度分离与几何方法 我们深入探讨了如何从系统的内在特性(如Jacobian矩阵的特征值分离、能量函数极小值结构)而非外部假设的小参数来识别时间尺度分离。重点讨论了几何奇性的概念,即系统解的轨迹穿过或接近解流形中的不稳定或鞍点结构时,系统动力学如何急剧变化。 1.2 泛函分析视角下的正则与奇性 本书采用泛函分析的视角,将奇异扰动问题转化为一个在特定Sobolev空间中寻找解的扰动问题。我们构建了一套“正则-奇性”基函数分解体系,允许我们将原非线性算子分解为作用于正则解空间和奇性(边界层)解空间的部分。这种分解为高精度数值求解奠定了理论基础。 1.3 慢/快流形的不稳定性和鲁棒性 针对由化学反应网络、电子振荡器等系统导出的自治和非自治微分方程组,我们发展了不变流形理论的推广版本。关键在于精确计算和刻画快流形在慢时间尺度上的演化,特别是当快流形本身表现出内在的超快振荡或混沌行为时,如何保证慢流形近似的有效性。 第二部分:复杂非线性耦合系统中的奇异性分析 本部分将理论工具应用于具有高度非线性耦合的实际问题,特别是那些在工程和生物物理中常见的系统。 2.1 结构耗散系统中的边界层 针对具有能量耗散特性的系统(如复杂的电磁耦合系统或流体力学中的边界层流动),本书提出了“耗散边界层”的概念。不同于传统的摩擦或粘性引起的边界层,耗散边界层是由系统内在的非线性反馈机制在短时间内强行将系统轨迹导向低维吸引子所致。我们通过引入“结构稳定泛函”来量化这种耗散强度。 2.2 滞后与延迟对奇异性的影响 延迟微分方程(DDEs)在许多模型中是不可避免的。本书着重研究当延迟时间与系统特征时间尺度处于同一量级时,延迟如何诱发或加剧奇异性。我们利用“无穷维动力学”的工具,分析了由有限维奇异扰动系统向具有无穷维稳定性的延迟系统过渡时的动力学行为。 2.3 奇性与分岔的相互作用 一个核心章节讨论了奇异扰动参数(或结构参数)变化时,系统解的稳定性如何通过奇异边界层附近发生突变。我们详细分析了奇性诱导的分岔(Singularity-Induced Bifurcation),这区别于传统的Hopf或Saddle-Node分岔。特别地,我们展示了在某些非光滑系统中,边界层的宽度本身可以成为一个分岔参数,导致系统从稳定不动点到周期解的“尖锐跳跃”。 第三部分:高维系统的计算方法与应用实例 本书最后一部分致力于将理论成果转化为可操作的计算方案,并展示其在复杂系统分析中的效力。 3.1 基于几何积分的自适应网格方法 传统的数值方法在边界层附近需要极细的网格划分,效率低下。本书提出了一种“流形自适应积分方法”(Manifold-Adaptive Integration)。该方法根据系统解在慢流形附近的局部曲率来动态调整时间步长和空间网格,极大地提高了求解精度和计算效率,尤其适用于高维化学动力学模拟。 3.2 随机微分方程中的奇异性处理 在存在白噪声或彩色噪声的系统中,随机奇异扰动问题变得更为棘手。我们引入了伊藤积分的局部平滑化技术,用于处理高频噪声在奇异边界层附近的放大效应。这对于分析如激光器动力学或生物膜通道中离子流动的随机模型至关重要。 3.3 实例:复杂电网的暂态稳定分析 作为最终的应用案例,本书详细分析了现代高压直流输电(HVDC)系统中的次暂态稳定性问题。这些系统表现出快电磁暂态和慢机械暂态的显著耦合。通过本书提出的奇异扰动分析框架,可以精确识别出导致系统崩溃的“临界时间窗”,并为控制系统设计提供理论指导,避免了过度保守的设计裕度。 --- 本书特点: 本书面向理论物理、应用数学、控制工程、化学反应工程以及复杂系统科学等领域的资深研究生、研究人员和工程师。它要求读者具备扎实的常微分方程和泛函分析基础。本书的价值在于它提供了一套超越传统微扰论(Perturbation Theory)限制的强有力工具,用以解析那些“看起来很正则,但行为上却很奇异”的复杂非线性系统。它强调从系统的内在几何结构中提取多尺度信息,并将其转化为可计算、可预测的动力学模型。

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