唐 瑩,劉紅梅,劉 洋,巫學(xué)佳
(大連民族學(xué)院 理學(xué)院,遼寧 大連 116600)
Riemann-liouville分?jǐn)?shù)導(dǎo)數(shù)以及Beta函數(shù)、Gauss級(jí)數(shù)的推廣
唐 瑩,劉紅梅*,劉 洋,巫學(xué)佳
(大連民族學(xué)院 理學(xué)院,遼寧 大連 116600)
旨在推廣Riemann-liouville分?jǐn)?shù)導(dǎo)數(shù),將它與Beta函數(shù)、Gauss級(jí)數(shù)建立聯(lián)系,從而建立相應(yīng)的等式.
Riemann-liouville分?jǐn)?shù)導(dǎo)數(shù);廣義Beta函數(shù);廣義Gauss級(jí)數(shù)
分?jǐn)?shù)導(dǎo)數(shù)在諸如流體流量、電網(wǎng)絡(luò)以及概率論等方面有著廣泛的應(yīng)用,目前是一個(gè)非?;钴S的研究領(lǐng)域.本文將推廣Riemann-liouville分?jǐn)?shù)導(dǎo)數(shù),將它與廣義Beta函數(shù)、廣義Gauss級(jí)數(shù)聯(lián)系起來(lái),建立一些有意義的恒等式.
在文獻(xiàn)[1]中,Riemann-liouville分?jǐn)?shù)導(dǎo)數(shù)的指數(shù)推廣形式定義為:
(1)
顯然當(dāng)p=0時(shí),上式即為經(jīng)典μ階Riemann-liouville分?jǐn)?shù)導(dǎo)數(shù).
本文將它推廣到級(jí)數(shù)形式:
(2)
廣義Beta函數(shù)的推廣形式定義如下[2]:
t.
(3)
(Re(α)>0,Re(β)>0,Re(p)>0,Re(x)>0,Re(y)>0)
當(dāng)α=β時(shí),式(3)即化為文獻(xiàn)[3]中的指數(shù)形式的Beta函數(shù);當(dāng)α=β且p=0時(shí),式(3)即為經(jīng)典Beta函數(shù).
廣義Gauss級(jí)數(shù)的積分表示為[2]:
t.
(Re(p)>0;p=0且|arg(1-z)|<π;Re(c)>Re(b)>0)
當(dāng)α=β且p=0時(shí),此式即為經(jīng)典Gauss級(jí)數(shù).
定理3 令Re(b)<0,Re(a)>0,Re(μ)>0,并且|z|<1,那么,
(a,b;μ;z).
[1] ?zarslan M A,?zergin E.Some generating relations for extended hypergeometric functions via generalized fractional derivative operator[J].Math Comput Modelling,2012,52:1825-1833.
[2] ?zergin E,?zarslan M A,Altn A.Extension of gamma, beta and hypergeometric functions[J].J Comput Appl Math,2011,235:4601-4610.
[3] Chaudhry M A,Qadir A,Rafique M.et al.Extension of Euler’s beta function[J].J Comput Appl Math,1997,78:19-32.
GeneralizationofRiemann-liouvilleFractionalDerivative,BetaFunctionandGaussSeries
TANG Ying,LIU Hong-mei*,LIU Yang,WU Xue-jia
(School of Science, Dalian Nationalities University,Dalian 116600,China)
The article aims to generalize Riemann-liouville fractional derivative.We connect it to Beta function and Gauss series and establish some equation.
Riemann-liouville fractional derivative;generalized Beta function;generalized Gauss series
2013-07-21.
遼寧省教育廳科學(xué)研究一般項(xiàng)目(L20130506);大連民族學(xué)院自主基金項(xiàng)目(DC110305);大學(xué)生創(chuàng)新創(chuàng)業(yè)項(xiàng)目.
唐瑩(1992- ),女,主要從事組合數(shù)學(xué)的研究;*
:劉紅梅(1979- ),女,博士,副教授,主要從事組合數(shù)學(xué)的研究.
O174
A
1008-8423(2013)03-0280-02