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Kyungpook mathematical journal
Journal Basic Information
pISSN :
1225-6951
eISSN :
0454-8124
Journal DOI :
10.5666/KMJ
Frequency :
Others
Publisher:
Department of Mathematics, Kyungpook National University
Editor in Chief :
Sang-Dong Kim
Volume & Issues
Volume 53, Issue 4 - Dec 2013
Volume 53, Issue 3 - Sep 2013
Volume 53, Issue 2 - Jun 2013
Volume 53, Issue 1 - Mar 2013
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1
Subordination and Superordination for Multivalent Functions associated with the Differintegral Operator
Kwon, Oh Sang ; Cho, Nak Eun ;
Kyungpook mathematical journal, volume 53, issue 1, 2013, Pages 1~12
DOI : 10.5666/KMJ.2013.53.1.1
Abstract
The purpose of the present paper is to obtain some subordination- and superordination-preserving properties for multivalent function associated the differintegral operators defined on the space of normalized analytic functions in the open unit disk. The sandwich type theorem for the integral operator is also considered.
2
Fekete-Szegö Problem for a Generalized Subclass of Analytic Functions
Orhan, Halit ; Yagmur, Nihat ; Caglar, Murat ;
Kyungpook mathematical journal, volume 53, issue 1, 2013, Pages 13~23
DOI : 10.5666/KMJ.2013.53.1.13
Abstract
In this present work, the authors obtain Fekete-Szeg
inequality for certain normalized analytic function
defined on the open unit disk for which
lies in a region starlike with respect to 1 and is symmetric with respect to the real axis. Also certain applications of the main result for a class of functions defined by Hadamard product (or convolution) are given. As a special case of this result, Fekete-Szeg
inequality for a class of functions defined through fractional derivatives are obtained.
3
Module-theoretic Characterizations of Strongly t-linked Extensions
Kim, Hwankoo ; Kwon, Tae In ;
Kyungpook mathematical journal, volume 53, issue 1, 2013, Pages 25~35
DOI : 10.5666/KMJ.2013.53.1.25
Abstract
In this paper, we introduce and study the concept of "strongly
-linked extensions", which is a stronger version of
-linked extensions of integral domains. We show that for an extension of Pr
fer
-multiplication domains, this concept is equivalent to that of "
-faithfully flat".
4
Characterizations of Several Modules Relative to the Class of B(M, X)
Talebi, Yahya ; Hosseinpour, Mehrab ;
Kyungpook mathematical journal, volume 53, issue 1, 2013, Pages 37~47
DOI : 10.5666/KMJ.2013.53.1.37
Abstract
Let M and X be right R-modules. We introduce several modules relative to the class of B(M, X) and we investigate relation among these modules. In this note, we show if M is X-
-supplemented such that
implies
and
are relatively B-projective, then M is an X-H-supplemented module.
5
A Note on Maass-Jacobi Forms II
Yang, Jae-Hyun ;
Kyungpook mathematical journal, volume 53, issue 1, 2013, Pages 49~86
DOI : 10.5666/KMJ.2013.53.1.49
Abstract
This article is a continuation of the paper [21]. In this paper we deal with Maass-Jacobi forms on the Siegel-Jacobi space
, where H denotes the Poincar
upper half plane and
is any positive integer.
6
Existence Results for the Nonlinear First Order Fuzzy Neutral Integrodifferential Equations
Radhakrishnan, Bheeman ; Nagarajan, Murugesan ; Narayanamoorthy, Samayan ;
Kyungpook mathematical journal, volume 53, issue 1, 2013, Pages 87~98
DOI : 10.5666/KMJ.2013.53.1.87
Abstract
In this paper, we devoted to study the existence and uniqueness of nonlinear fuzzy neutral integrodifferential equations. Moreover we study the fuzzy solution for the normal, convex, upper semicontinuous, and compactly supported interval fuzzy number. The results are obtained by using the Banach fixed-point theorem. An example is provided to illustrate the theory.
7
Some Characterizations of Parabolas
Kim, Dong-Soo ; Park, Jong Ho ; Kim, Young Ho ;
Kyungpook mathematical journal, volume 53, issue 1, 2013, Pages 99~104
DOI : 10.5666/KMJ.2013.53.1.99
Abstract
We study some properties of tangent lines of parabolas. As a result, we establish some characterizations of parabolas.
8
On the Folding of the Rectangular Distribution
El-Shehawy, S.A. ; Basher, M. ;
Kyungpook mathematical journal, volume 53, issue 1, 2013, Pages 105~116
DOI : 10.5666/KMJ.2013.53.1.105
Abstract
Based on the concept of the folding, the folding in X-direction and in Y-direction are defined and denoted by the X-Folding and the Y-Folding respectively. We consider a random variable X which follows a rectangular distribution "R(a, b) distribution" with two parameters a, b. This paper aims to apply the folding on the unit area P(
) and also to study the proposed folding in each direction for R(a, b) distribution and the generated family of the corresponding constructed rectangular probability distributions. Some main properties of this family are reviewed. According to the proposed folding, we derive and discuss some important corresponding functions in closed forms.
9
The Polynomial Numerical Index of L
_{p}
(μ)
Kim, Sung Guen ;
Kyungpook mathematical journal, volume 53, issue 1, 2013, Pages 117~124
DOI : 10.5666/KMJ.2013.53.1.117
Abstract
We show that for 1 <
<
,
,
,
and that for any positive measure
,
. We also prove that for every
(1 <
<
), if
, then
.
10
On Nearly Pairwise Compact Spaces
Mukharjee, Ajoy ; Bose, Manoj Kumar ;
Kyungpook mathematical journal, volume 53, issue 1, 2013, Pages 125~133
DOI : 10.5666/KMJ.2013.53.1.125
Abstract
In this paper, we introduce the notion of near pairwise compactness which generalizes the notion of pairwise compactness.
11
G-frames as Sums of Some g-orthonormal Bases
Abdollahpour, Mohammad Reza ; Najati, Abbas ;
Kyungpook mathematical journal, volume 53, issue 1, 2013, Pages 135~141
DOI : 10.5666/KMJ.2013.53.1.135
Abstract
In this paper we show that a
-frame for a Hilbert space
can be written as a linear combination of two
-orthonormal bases for
if and only if it is a
-Riesz basis for
. Also, we show that every
-frame for a Hilbert space
is a multiple of a sum of three
-orthonormal bases for
.
12
Representation Theory of the Lie Group T
_{3}
and Three Index Bessel Functions
Pathan, Mahmood Ahmad ; Shahwan, Mohannad Jamal Said ;
Kyungpook mathematical journal, volume 53, issue 1, 2013, Pages 143~148
DOI : 10.5666/KMJ.2013.53.1.143
Abstract
The theory of generalized Bessel functions is reformulated within the framework of an operational formalism using the multiplier representation of the Lie group
as suggested by Miller. This point of view provides more efficient tools which allow the derivation of generating functions of generalized Bessel functions. A few special cases of interest are also discussed.