• 제목/요약/키워드: Central functions

검색결과 769건 처리시간 0.029초

Structure And Functions Of District Central Libraries In Tamil Nadu : An Empirical Study

  • Kumar, S.K. Asok;Babu, B. Ramesh
    • 정보관리연구
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    • 제38권4호
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    • pp.181-199
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    • 2007
  • This paper aims at projecting the structure and functions of District Central Libraries in Tamil Nadu based upon primary records collected from the Directorate of Public Libraries and survey of District Library officers who are the authorities of District Central Libraries. This paper reveals the State of Art the District Central Libraries and their functions. Based on outputs a number of suggestions have been provided. This paper represents an empirical research study.

COEFFICIENT DISCS AND GENERALIZED CENTRAL FUNCTIONS FOR THE CLASS OF CONCAVE SCHLICHT FUNCTIONS

  • Bhowmik, Bappaditya;Wirths, Karl-Joachim
    • 대한수학회보
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    • 제51권5호
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    • pp.1551-1559
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    • 2014
  • We consider functions that map the open unit disc conformally onto the complement of an unbounded convex set with opening angle ${\pi}{\alpha}$, ${\alpha}{\in}(1,2]$, at infinity. We derive the exact interval for the variability of the real Taylor coefficients of these functions and we prove that the corresponding complex Taylor coefficients of such functions are contained in certain discs lying in the right half plane. In addition, we also determine generalized central functions for the aforesaid class of functions.

A TREATMENT OF CONTACT DISCONTINUITY FOR CENTRAL UPWIND SCHEME BY CHANGING FLUX FUNCTIONS

  • Shin, Moungin;Shin, Suyeon;Hwang, Woonjae
    • Journal of the Korean Society for Industrial and Applied Mathematics
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    • 제17권1호
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    • pp.29-45
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    • 2013
  • Central schemes offer a simple and versatile approach for computing approximate solutions of nonlinear systems of hyperbolic conservation laws. However, there are large numerical dissipation in case of contact discontinuity. We study semi-discrete central upwind scheme by changing flux functions to reduce the numerical dissipation and we perform numerical computations for various problems in case of contact discontinuity.

A POWER SERIES ASSOCIATED WITH THE GENERALIZED HYPERGEOMETRIC FUNCTIONS WITH THE UNIT ARGUMENT WHICH ARE INVOLVED IN BELL POLYNOMIALS

  • Choi, Junesang;Qureshi, Mohd Idris;Majid, Javid;Ara, Jahan
    • Nonlinear Functional Analysis and Applications
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    • 제27권1호
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    • pp.169-187
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    • 2022
  • There have been provided a surprisingly large number of summation formulae for generalized hypergeometric functions and series incorporating a variety of elementary and special functions in their various combinations. In this paper, we aim to consider certain generalized hypergeometric function 3F2 with particular arguments, through which a number of summation formulas for p+1Fp(1) are provided. We then establish a power series whose coefficients are involved in generalized hypergeometric functions with unit argument. Also, we demonstrate that the generalized hypergeometric functions with unit argument mentioned before may be expressed in terms of Bell polynomials. Further, we explore several special instances of our primary identities, among numerous others, and raise a problem that naturally emerges throughout the course of this investigation.

ON SEVERAL NEW CONTIGUOUS FUNCTION RELATIONS FOR k-HYPERGEOMETRIC FUNCTION WITH TWO PARAMETERS

  • Chinra, Sivamani;Kamalappan, Vilfred;Rakha, Medhat A.;Rathie, Arjun K.
    • 대한수학회논문집
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    • 제32권3호
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    • pp.637-651
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    • 2017
  • Very recently, Mubeen, et al. [6] have obtained fifteen contiguous function relations for k-hypergeometric functions with one parameter by the same technique developed by Gauss. The aim of this paper is to obtain seventy-two new and interesting contiguous function relations for k-hypergeometric functions with two parameters. Obviously, for $k{\rightarrow}1$ we recover the results obtained by Cho, et al. [2] and Rakha, et al. [8].

Radius of Starlikeness for Analytic Functions with Fixed Second Coefficient

  • Ali, Rosihan M.;Kumar, Virendra;Ravichandran, V.;Kumar, Shanmugam Sivaprasad
    • Kyungpook Mathematical Journal
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    • 제57권3호
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    • pp.473-492
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    • 2017
  • Sharp radius constants for certain classes of normalized analytic functions with fixed second coefficient, to be in the classes of starlike functions of positive order, parabolic starlike functions, and Sokół-Stankiewicz starlike functions are obtained. Our results extend several earlier works.

SOME RESULTS ON CERTAIN CLASS OF ANALYTIC FUNCTIONS BASED ON DIFFERENTIAL SUBORDINATION

  • Prajapat, Jugal Kishore;Agarwal, Ritu
    • 대한수학회보
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    • 제50권1호
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    • pp.1-10
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    • 2013
  • In the present paper we derive various useful properties and characteristics for certain class of analytic functions by using the techniques of differential subordination. Some interesting corollaries and applications of the results presented here are also discussed.