University proceedings. Volga region. Physical and mathematical sciences
RUS  ENG    JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB  
General information
Latest issue
Archive

Search papers
Search references

RSS
Latest issue
Current issues
Archive issues
What is RSS



University proceedings. Volga region. Physical and mathematical sciences:
Year:
Volume:
Issue:
Page:
Find






Personal entry:
Login:
Password:
Save password
Enter
Forgotten password?
Register


University proceedings. Volga region. Physical and mathematical sciences, 2015, Issue 4, Pages 29–37 (Mi ivpnz265)  

Mathematics

Some representations of the gamma function

A. V. Pozhidaev, N. M. Pekel'nik, O. I. Khaustova, I. A. Trefilova

Siberia State University of Railway Transportation, Novosibirsk
References:
Abstract: Background. One of the most important functions, expressed by an improper integral containing a parameter, is the gamma function. It occurs naturally in many areas of modern mathematics and applications. The special role of this function in mathematical analysis is that some important definite integrals, infinite series and infinite products are expressed through it. In recent years, the efforts of many authors have been aimed at getting different estimates of this function. The purpose of this paper is to make one of the possible decompositions of the gamma function into an infinite product and the analysis of this representation. Materials and methods. The authors used suitable integral representations of functions, various properties of convergent improper integrals with a parameter and their behavior in the limit. Herewith, the mathedo of mathematical induction was applied. Results and conclusions. The researchers have obtained some representation of the gamma function as an infinite product at some point. The analysis of the obtained results allowed to establish a connection between the gamma function and the Poisson distribution.
Keywords: gamma function, Euler's constant, infinite product, differentiation of an improper integral by a parameter, two-sided estimates of the gamma function, behavior of an integral in the limit.
Document Type: Article
UDC: 517.581
Language: Russian
Citation: A. V. Pozhidaev, N. M. Pekel'nik, O. I. Khaustova, I. A. Trefilova, “Some representations of the gamma function”, University proceedings. Volga region. Physical and mathematical sciences, 2015, no. 4, 29–37
Citation in format AMSBIB
\Bibitem{PozPekKha15}
\by A.~V.~Pozhidaev, N.~M.~Pekel'nik, O.~I.~Khaustova, I.~A.~Trefilova
\paper Some representations of the gamma function
\jour University proceedings. Volga region. Physical and mathematical sciences
\yr 2015
\issue 4
\pages 29--37
\mathnet{http://mi.mathnet.ru/ivpnz265}
Linking options:
  • https://www.mathnet.ru/eng/ivpnz265
  • https://www.mathnet.ru/eng/ivpnz/y2015/i4/p29
  • Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    University proceedings. Volga region. Physical and mathematical sciences
    Statistics & downloads:
    Abstract page:17
    Full-text PDF :13
    References:5
     
      Contact us:
     Terms of Use  Registration to the website  Logotypes © Steklov Mathematical Institute RAS, 2024