A general asymptotic formula of the gamma function based on the Burnside's formula

被引:7
作者
Lu, Dawei [1 ]
Feng, Jinghai [1 ]
Ma, Cong-Xu [1 ]
机构
[1] Dalian Univ Technol, Sch Math Sci, Dalian 116023, Peoples R China
基金
中国国家自然科学基金;
关键词
Burnside's formula; Stirling's formula; Continued fraction; Factorial function; Rate of convergence; APPROXIMATION; INEQUALITIES; CONSTANT;
D O I
10.1016/j.jnt.2014.06.016
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper, based on the Burnside's formula and our early works, a general continued fraction approximation of the factorial function and some inequalities for the gamma function are established. Finally, for demonstrating the superiority of our new series over the Burnside's formula and our early formulas, some numerical computations are given. (C) 2014 Elsevier Inc. All rights reserved.
引用
收藏
页码:317 / 328
页数:12
相关论文
共 15 条
[1]  
ABRAMOWITZ M, 1972, APPL MATH SER NATL B, V55
[2]   On some inequalities for the gamma and psi functions [J].
Alzer, H .
MATHEMATICS OF COMPUTATION, 1997, 66 (217) :373-389
[3]  
Burnside W., 1917, Messenger Math, V46, P157
[5]   A new asymptotic expansion and some inequalities for the gamma function [J].
Lu, Dawei ;
Wang, Xiaoguang .
JOURNAL OF NUMBER THEORY, 2014, 140 :314-323
[6]   A generated approximation related to Burnside's formula [J].
Lu, Dawei .
JOURNAL OF NUMBER THEORY, 2014, 136 :414-422
[7]   A generated approximation related to Gosper's formula and Ramanujan's formula [J].
Lu, Dawei ;
Wang, Xiaoguang .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2013, 406 (01) :287-292
[8]   A continued fraction approximation of the gamma function [J].
Mortici, Cristinel .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2013, 402 (02) :405-410
[9]   A new Stirling series as continued fraction [J].
Mortici, Cristinel .
NUMERICAL ALGORITHMS, 2011, 56 (01) :17-26
[10]   Very accurate estimates of the polygamma functions [J].
Mortici, Cristinel .
ASYMPTOTIC ANALYSIS, 2010, 68 (03) :125-134