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arXiv 1202.0261math-phmath.MPnlin.SI
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波传播问题中的分数阶微积分

Fractional Calculus in Wave Propagation Problems

Francesco Mainardi

摘要:

分数阶微积分,允许任何正阶的积分和导数(术语“分数”仅因历史原因而保留),可以被认为是数学物理的一个分支,主要处理积分微分方程,其中积分是具有幂律类型的弱奇异核的卷积形式。近几十年来,分数阶微积分在应用科学的各个领域中得到了越来越多的应用。在这堂课中,我们将专注于线性粘弹性介质中的波传播问题。我们的目的是概述分数阶微积分的作用,在提供最简单的演化过程是扩散和波传播之间的中间。本文主要反映了作者近几十年来在相关科学领域的研究活动和风格。

英文摘要:

Fractional calculus, in allowing integrals and derivatives of any positive order (the term "fractional" kept only for historical reasons), can be considered a branch of mathematical physics which mainly deals with integro-differential equations, where integrals are of convolution form with weakly singular kernels of power law type. In recent decades fractional calculus has won more and more interest in applications in several fields of applied sciences. In this lecture we devote our attention to wave propagation problems in linear viscoelastic media. Our purpose is to outline the role of fractional calculus in providing simplest evolution processes which are intermediate between diffusion and wave propagation. The present treatment mainly reflects the research activity and style of the author in the related scientific areas during the last decades.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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