Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
search word
HOME
>
Journal Browse
>
About Journal
> Journal Vol & Issue
Journal of applied mathematics & informatics
Journal Basic Information
pISSN :
1598-5857
eISSN :
2234-8417
Journal DOI :
10.14317/jami
Frequency :
Others
Publisher:
The Korean Society of Computational and Applied Mathematics
Editor in Chief :
Cheon-Seoung Ryoo / Hong-Tae Shim
Volume & Issues
Volume 32, Issue 5_6 - Sep 2014
Volume 32, Issue 3_4 - May 2014
Volume 32, Issue 1_2 - Jan 2014
Selecting the target year
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
All
1
A NEW VERTEX-COLORING EDGE-WEIGHTING OF COMPLETE GRAPHS
Farahani, Mohammad Reza ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 1~6
DOI : 10.14317/jami.2014.001
Abstract
Let G
2
QUOTIENT MOMENTS OF THE ERLANG-TRUNCATED EXPONENTIAL DISTRIBUTION BASED ON RECORD VALUES AND A CHARACTERIZATION
Kumar, Devendra ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 7~16
DOI : 10.14317/jami.2014.007
Abstract
Erlang-truncated exponential distribution is widely used in the field of queuing system and stochastic processes. This family of distribution include exponential distribution. In this paper we establish some exact expression and recurrence relations satisfied by the quotient moments and conditional quotient moments of the upper record values from the Erlang-truncated exponential distribution. Further a characterization of this distribution based on recurrence relations of quotient moments of record values is presented.
3
COMPUTING THE NUMBER OF POINTS ON GENUS 3 HYPERELLIPTIC CURVES OF TYPE Y
^{2}
Sohn, Gyoyong ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 17~26
DOI : 10.14317/jami.2014.017
Abstract
In this paper, we present an algorithm for computing the number of points on the Jacobian varieties of genus 3 hyperelliptic curves of type $y^2
4
ON GENERALIZED (α, β)-DERIVATIONS IN BCI-ALGEBRAS
Al-Roqi, Abdullah M. ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 27~38
DOI : 10.14317/jami.2014.027
Abstract
The notion of generalized (regular) (
)-derivations of a BCI-algebra is introduced, some useful examples are discussed, and related properties are investigated. The condition for a generalized (
)-derivation to be regular is provided. The concepts of a generalized F-invariant (
)-derivation and
-ideal are introduced, and their relations are discussed. Moreover, some results on regular generalized (
)-derivations are proved.
5
A NON-ASYMPTOTIC METHOD FOR SINGULARLY PERTURBED DELAY DIFFERENTIAL EQUATIONS
File, Gemechis ; Reddy, Y.N. ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 39~53
DOI : 10.14317/jami.2014.039
Abstract
In this paper, a non-asymptotic method is presented for solving singularly perturbed delay differential equations whose solution exhibits a boundary layer behavior. The second order singularly perturbed delay differential equation is replaced by an asymptotically equivalent first order neutral type delay differential equation. Then, Simpson`s integration formula and linear interpolation are employed to get three term recurrence relation which is solved easily by Discrete Invariant Imbedding Algorithm. Some numerical examples are given to validate the computational efficiency of the proposed numerical scheme for various values of the delay and perturbation parameters.
6
ON MARCINKIEWICZ`S TYPE LAW FOR FUZZY RANDOM SETS
Kwon, Joong-Sung ; Shim, Hong-Tae ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 55~60
DOI : 10.14317/jami.2014.055
Abstract
In this paper, we will obtain Marcinkiewicz`s type limit laws for fuzzy random sets as follows : Let {
} be a sequence of independent identically distributed fuzzy random sets and
<
with
. Then the following are equivalent:
a.s. in the metric
if and only if
in probability in the metric
if and only if
in
if and only if
in
where $S_n
7
AN ITERATIVE METHOD FOR ORTHOGONAL PROJECTIONS OF GENERALIZED INVERSES
Srivastava, Shwetabh ; Gupta, D.K. ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 61~74
DOI : 10.14317/jami.2014.061
Abstract
This paper describes an iterative method for orthogonal projections
and
of an arbitrary matrix A, where
represents the Moore-Penrose inverse. Convergence analysis along with the first and second order error estimates of the method are investigated. Three numerical examples are worked out to show the efficacy of our work. The first example is on a full rank matrix, whereas the other two are on full rank and rank deficient randomly generated matrices. The results obtained by the method are compared with those obtained by another iterative method. The performance measures in terms of mean CPU time (MCT) and the error bounds for computing orthogonal projections are listed in tables. If
, k
8
TRIPLE SOLUTIONS FOR THREE-ORDER PERIODIC BOUNDARY VALUE PROBLEMS WITH SIGN CHANGING NONLINEARITY
Tan, Huixuan ; Feng, Hanying ; Feng, Xingfang ; Du, Yatao ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 75~82
DOI : 10.14317/jami.2014.075
Abstract
In this paper, we consider the periodic boundary value problem with sign changing nonlinearity $$u^{{\prime}{\prime}{\prime}}+{\rho}^3u
9
UNIQUE DECODING OF PLANE AG CODES REVISITED
Lee, Kwankyu ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 83~98
DOI : 10.14317/jami.2014.083
Abstract
We reformulate an interpolation-based unique decoding algorithm of AG codes, using the theory of Gr
bner bases of modules on the coordinate ring of the base curve. The conceptual description of the reformulated algorithm lets us better understand the majority voting procedure, which is central in the interpolation-based unique decoding. Moreover the smaller Gr
bner bases imply smaller space and time complexity of the algorithm.
10
DUALITY IN MULTIOBJECTIVE FRACTIONAL PROGRAMMING PROBLEMS INVOLVING (H
_{p}
, r)-INVEX FUNCTIONS
Jayswal, Anurag ; Ahmad, I. ; Prasad, Ashish Kumar ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 99~111
DOI : 10.14317/jami.2014.099
Abstract
In this paper, we have taken step in the direction to establish weak, strong and strict converse duality theorems for three types of dual models related to multiojective fractional programming problems involving (
, r)-invex functions.
11
ON SOME p(x)-KIRCHHOFF TYPE EQUATIONS WITH WEIGHTS
Chung, Nguyen Thanh ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 113~128
DOI : 10.14317/jami.2014.113
Abstract
Consider a class of p(x)-Kirchhoff type equations of the form $$\left\{-M\left({\int}_{\Omega}\;\frac{1}{p(x)}{\mid}{\nabla}u{\mid}^{p(x)}\;dx\right)\;div\;({\mid}{\nabla}u{\mid}^{p(x)-2}{\nabla}u)
12
PERIODIC SENSING AND GREEDY ACCESS POLICY USING CHANNEL MODELS WITH GENERALLY DISTRIBUTED ON AND OFF PERIODS IN COGNITIVE NETWORKS
Lee, Yutae ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 129~136
DOI : 10.14317/jami.2014.129
Abstract
One of the fundamental issues in the design of dynamic spectrum access policy is the modeling of the dynamic behavior of channel occupancy by primary users. Under a Markovian modeling of channel occupancy, a periodic sensing and greedy access policy is known as one of the simple and practical dynamic spectrum access policies in cognitive radio networks. In this paper, the primary occupancy of each channel is modeled as a discrete-time alternating renewal process with generally distributed on- and off-periods. A periodic sensing and greedy access policy is constructed based on the general channel occupancy model. Simulation results show that the proposed policy has better throughput than the policies using channel models with exponentially distributed on- or off-periods.
13
INFINITELY MANY SMALL SOLUTIONS FOR THE p(x)-LAPLACIAN OPERATOR WITH CRITICAL GROWTH
Zhou, Chenxing ; Liang, Sihua ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 137~152
DOI : 10.14317/jami.2014.137
Abstract
In this paper, we prove, in the spirit of [3, 12, 20, 22, 23], the existence of infinitely many small solutions to the following quasilinear elliptic equation $-{\Delta}_{p(x)}u+{\mid}u{\mid}^{p(x)-2}u
14
WOLFE TYPE HIGHER ORDER SYMMETRIC DUALITY UNDER INVEXITY
Verma, Khushboo ; Gulati, T.R. ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 153~159
DOI : 10.14317/jami.2014.153
Abstract
In this paper, we introduce a pair of higher-order symmetric dual models/problems. Weak, strong and converse duality theorems for this pair are established under the assumption of higher-order invexity. Moreover, self duality theorem is also discussed.
15
THEORETICAL DEPENDENCE CONCEPTS FOR STOCHASTIC PROCESSES
Kim, So-Youn ; Baek, Jong-Il ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 161~169
DOI : 10.14317/jami.2014.161
Abstract
We in this paper obtained the theoretical results for multivariate stochastic processes which help us to extended negatively orthant dependent(ENOD) structures among hitting times of the processes. In addition, some applications are given to illustrate these concepts.
16
HIGHER ORDER ITERATIONS FOR MOORE-PENROSE INVERSES
Srivastava, Shwetabh ; Gupta, D.K. ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 171~184
DOI : 10.14317/jami.2014.171
Abstract
A higher order iterative method to compute the Moore-Penrose inverses of arbitrary matrices using only the Penrose equation (ii) is developed by extending the iterative method described in [1]. Convergence properties as well as the error estimates of the method are studied. The efficacy of the method is demonstrated by working out four numerical examples, two involving a full rank matrix and an ill-conditioned Hilbert matrix, whereas, the other two involving randomly generated full rank and rank deficient matrices. The performance measures are the number of iterations and CPU time in seconds used by the method. It is observed that the number of iterations always decreases as expected and the CPU time first decreases gradually and then increases with the increase of the order of the method for all examples considered.
17
SPLINE DIFFERENCE SCHEME FOR TWO-PARAMETER SINGULARLY PERTURBED PARTIAL DIFFERENTIAL EQUATIONS
Zahra, W.K. ; El-Azab, M.S. ; Mhlawy, Ashraf M. El ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 185~201
DOI : 10.14317/jami.2014.185
Abstract
In this paper, we construct a numerical method to solve singularly perturbed one-dimensional parabolic convection-diffusion problems. We use Euler method with uniform step size for temporal discretization and exponential-spline scheme on spatial uniform mesh of Shishkin type for full discretization. We show that the resulting method is uniformly convergent with respect to diffusion parameter. An extensive amount of analysis has been carried out to prove the uniform convergence with respect to the singular perturbation parameter. The obtained numerical results show that the method is efficient, stable and reliable for solving convection-diffusion problem accurately even involving diffusion parameter.
18
SOMEWHAT FUZZY γ-IRRESOLUTE CONTINUOUS MAPPINGS
Im, Young Bin ; Lee, Joo Sung ; Cho, Yung Duk ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 203~209
DOI : 10.14317/jami.2014.203
Abstract
We define and characterize a somewhat fuzzy
-irresolute continuous mapping and a somewhat fuzzy irresolute
-open mapping on a fuzzy topological space.
19
A SMOOTHING NEWTON METHOD FOR NCP BASED ON A NEW CLASS OF SMOOTHING FUNCTIONS
Zhu, Jianguang ; Hao, Binbin ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 211~225
DOI : 10.14317/jami.2014.211
Abstract
A new class of smoothing functions is introduced in this paper, which includes some important smoothing complementarity functions as its special cases. Based on this new smoothing function, we proposed a smoothing Newton method. Our algorithm needs only to solve one linear system of equations. Without requiring the nonemptyness and boundedness of the solution set, the proposed algorithm is proved to be globally convergent. Numerical results indicate that the smoothing Newton method based on the new proposed class of smoothing functions with
seems to have better numerical performance than those based on some other important smoothing functions, which also demonstrate that our algorithm is promising.
20
THE NORMALIZED LAPLACIAN ESTRADA INDEX OF GRAPHS
Hakimi-Nezhaad, Mardjan ; Hua, Hongbo ; Ashrafi, Ali Reza ; Qian, Shuhua ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 227~245
DOI : 10.14317/jami.2014.227
Abstract
Suppose G is a simple graph. The
-eigenvalues
,
,...,
of G are the eigenvalues of its normalized Laplacian
. The normalized Laplacian Estrada index of the graph G is dened as
21
BOUNDEDNESS IN NONLINEAR PERTURBED DIFFERENTIAL SYSTEMS
Goo, Yoon Hoe ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 247~254
DOI : 10.14317/jami.2014.247
Abstract
In this paper, we investigate bounds for solutions of nonlinear perturbed differential systems.
22
ON THE MONOPHONIC NUMBER OF A GRAPH
Santhakumaran, A.P. ; Titus, P. ; Ganesamoorthy, K. ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 255~266
DOI : 10.14317/jami.2014.255
Abstract
For a connected graph G
23
LEGENDRE MULTIWAVELET GALERKIN METHODS FOR DIFFERENTIAL EQUATIONS
Zhou, Xiaolin ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 267~284
DOI : 10.14317/jami.2014.267
Abstract
The multiresolution analysis for Legendre multiwavelets are given, anti-derivatives of Legendre multiwavelets are used for the numerical solution of differential equations, a special form of multilevel augmentation method algorithm is proposed to solve the disrete linear system efficiently, convergence rate of the Galerkin methods is given and numerical examples are presented.
24
ON STEIN TRANSFORMATION IN SEMIDEFINITE LINEAR COMPLEMENTARITY PROBLEMS
Song, Yoon J. ; Shin, Seon Ho ;
Journal of applied mathematics & informatics, volume 32, issue 1_2, 2014, Pages 285~295
DOI : 10.14317/jami.2014.285
Abstract
In the setting of semidenite linear complementarity problems on
, we focus on the Stein Transformation $S_A(X)\;: