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arXiv 2103.04284math.CA
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关于第二类Wright函数的渐近性

On the asymptotic of Wright functions of the second kind

Richard Paris, Armando Consiglio, Francesco Mainardi

摘要:

由Mainardi [参见他的书{ \it Fractional Calculus and Waves in Linear Viscoelasticity},(2010)的附录F],$$ F_σ(x)=\sum_{n=0}^\infty \frac{(-x)^n}{n! \g(-nσ)}~,\quad M_σ(x)=\sum_{n=0}^\infty \frac{(-x)^n}{n! \g(-nσ+1-σ)}\quad(0<σ<1)$$为$x\to\pm\infty$引入的第二类赖特函数的渐近展开被呈现。对应于极限$σ\to1^-$的情况被考虑,其中$M_σ(x)$接近狄拉克δ函数$δ(x-1)$。数值结果证明了本文中所推导的展开式的准确性,同时给出了向狄拉克δ函数($σ\to 1^-$)过渡的图形说明.

英文摘要:

The asymptotic expansions of the Wright functions of the second kind, introduced by Mainardi [see Appendix F of his book {\it Fractional Calculus and Waves in Linear Viscoelasticity}, (2010)], $$ F_σ(x)=\sum_{n=0}^\infty \frac{(-x)^n}{n! \g(-nσ)}~,\quad M_σ(x)=\sum_{n=0}^\infty \frac{(-x)^n}{n! \g(-nσ+1-σ)}\quad(0<σ<1)$$ for $x\to\pm\infty$ are presented. The situation corresponding to the limit $σ\to1^-$ is considered, where $M_σ(x)$ approaches the Dirac delta function $δ(x-1)$. Numerical results are given to demonstrate the accuracy of the expansions derived in the paper, together with graphical illustrations that reveal the transition to a Dirac delta function as $σ\to 1^-$.

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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