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Honam Mathematical Journal
Journal Basic Information
pISSN :
1225-293X
eISSN :
2288-6176
Journal DOI :
10.5831/HMJ
Frequency :
Others
Publisher:
The Honam Mathematical Society
Editor in Chief :
Myung Hyun Cho
Volume & Issues
Volume 36, Issue 4 - Dec 2014
Volume 36, Issue 3 - Sep 2014
Volume 36, Issue 2 - Jun 2014
Volume 36, Issue 1 - Mar 2014
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1
GEOMETRY OF HALF LIGHTLIKE SUBMANIFOLDS OF AN INDEFINITE KAEHLER MANIFOLD WITH A QUARTER-SYMMETRIC METRIC CONNECTION
Jin, Dae Ho ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 217~232
DOI : 10.5831/HMJ.2014.36.2.217
Abstract
In this paper, we study the geometry of half lightlike submanifolds of an indefinite Kaehler manifold equipped with a quarter-symmetric metric connection. The main result is to prove several classification theorems for such half lightlike submanifolds.
2
POSITION VECTOR OF SPACELIKE SLANT HELICES IN MINKOWSKI 3-SPACE
Ali, Ahmad T. ; Mahmoud, S.R. ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 233~251
DOI : 10.5831/HMJ.2014.36.2.233
Abstract
In this paper, position vector of a spacelike slant helix with respect to standard frame are deduced in Minkowski space
. Some new characterizations of a spacelike slant helices are presented. Also, a vector differential equation of third order is constructed to determine position vector of an arbitrary spacelike curve. In terms of solution, we determine the parametric representation of the spacelike slant helices from the intrinsic equations. Thereafter, we apply this method to find the parametric representation of some special spacelike slant helices such as: Salkowski and anti-Salkowski curves.
3
WALLMAN SUBLATTICES AND QUASI-F COVERS
Lee, BongJu ; Kim, ChangIl ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 253~261
DOI : 10.5831/HMJ.2014.36.2.253
Abstract
In this paper, we first will show that for any space X and any Wallman sublattice
of
with
, (
,
) is the minimal quasi-F cover of X if and only if (
,
) is a quasi-F cover of X and
. Using this, if X is a locally weakly Lindel
f space, the set {
is a Wallman sublattice of
with
and
is the minimal quasi-F cover of X}, when partially ordered by inclusion, has the minimal element
and the maximal element
. Finally, we will show that any Wallman sublattice
of
with
,
is
-irreducible if and only if $\mathcal{A}
4
EVALUATION OF CERTAIN ALTERNATING SERIES
Choi, Junesang ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 263~273
DOI : 10.5831/HMJ.2014.36.2.263
Abstract
Ever since Euler solved the so-called Basler problem of ${\zeta}(2)
5
MATRIX TYPES WITH DETERMINANTS IN LINEAR FACTORED FORMS
An, Ji Hye ; Lee, A Reum ; Lee, Seul Bi ; Lim, Su San ; Song, Seok-Zun ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 275~289
DOI : 10.5831/HMJ.2014.36.2.275
Abstract
We study matrix forms whose determinants are easily computable. We give various forms of square matrices whose determinants are products of linear factors related with their entries.
6
ON A STUDY OF ERROR BOUNDS OF TRAPEZOIDAL RULE
Hahm, Nahmwoo ; Hong, Bum Il ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 291~303
DOI : 10.5831/HMJ.2014.36.2.291
Abstract
In this paper, through a direct computation with subintervals partitioning [0, 1], we compute better a posteriori bounds for the average case error of the difference between the true value of $I(f)
7
ARITHMETIC SUMS SUBJECT TO LINEAR AND CONGRUENT CONDITIONS AND SOME APPLICATIONS
Kim, Aeran ; Kim, Daeyeoul ; Sankaranarayanan, Ayyadurai ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 305~338
DOI : 10.5831/HMJ.2014.36.2.305
Abstract
We investigate the explicit evaluation for the sum $\sum_{(a,b,x,y){\in}\mathbb{N}^4,\\{ax+by
8
THE IDEAL τ(M) AND LOCALLY CYCLIC PROJECTIVE MODULES
Cho, Yong Hwan ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 339~344
DOI : 10.5831/HMJ.2014.36.2.339
Abstract
In this paper, we give some properties on projective modules, locally cyclic projective modules and the ideal
.
9
ON THE REDUCIBILITY OF KAMPÉ DE FÉRIET FUNCTION
Choi, Junesang ; Rathie, Arjun K. ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 345~355
DOI : 10.5831/HMJ.2014.36.2.345
Abstract
The main objective of this paper is to obtain a formula containing eleven interesting results for the reducibility of Kamp
de F
riet function. The results are derived with the help of two general results for the series
very recently presented by Kim et al. Well known Kummer`s second theorem and its contiguous results proved earlier by Rathie and Nagar, and Kim et al. follow special cases of our main findings.
10
EXTENSION OF EXTENDED BETA, HYPERGEOMETRIC AND CONFLUENT HYPERGEOMETRIC FUNCTIONS
Choi, Junesang ; Rathie, Arjun K. ; Parmar, Rakesh K. ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 357~385
DOI : 10.5831/HMJ.2014.36.2.357
Abstract
Recently several authors have extended the Gamma function, Beta function, the hypergeometric function, and the confluent hypergeometric function by using their integral representations and provided many interesting properties of their extended functions. Here we aim at giving further extensions of the abovementioned extended functions and investigating various formulas for the further extended functions in a systematic manner. Moreover, our extension of the Beta function is shown to be applied to Statistics and also our extensions find some connections with other special functions and polynomials such as Laguerre polynomials, Macdonald and Whittaker functions.
11
A STRUCTURE THEOREM FOR A CLASS OF GORENSTEIN IDEALS OF GRADE FOUR
Cho, Yong S. ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 387~398
DOI : 10.5831/HMJ.2014.36.2.387
Abstract
In this paper, we give a structure theorem for a class of Gorenstein ideal of grade 4 which is the sum of an almost complete intersection of grade 3 and a Gorenstein ideal of grade 3 geometrically linked by a regular sequence. We also present the Hilbert function of a Gorenstein ideal of grade 4 induced by a Gorenstein matrix f.
12
THE BOUNDARIES OF DIPOLE GRAPHS AND THE COMPLETE BIPARTITE GRAPHS K
_{2,n}
Kim, Dongseok ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 399~415
DOI : 10.5831/HMJ.2014.36.2.399
Abstract
We study the Seifert surfaces of a link by relating the embeddings of graphs with induced graphs. As applications, we prove that every link L is the boundary of an oriented surface which is obtained from a graph embedding of a complete bipartite graph
, where all voltage assignments on the edges of
are 0. We also provide an algorithm to construct such a graph diagram of a given link and demonstrate the algorithm by dealing with the links
and
.
13
ON THE RATIO OF TATE-SHAFAREVICH GROUPS OVER CYCLIC EXTENSIONS OF ORDER p
^{2}
Yu, Hoseog ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 417~424
DOI : 10.5831/HMJ.2014.36.2.417
Abstract
Let A be an abelian variety defined over a number field K and p be a prime. Define ${\varphi}_i
14
A GENERALIZATION OF A SEQUENTIAL SPACE AND RELATED SPACES
Hong, Woo Chorl ; Kwon, Seonhee ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 425~434
DOI : 10.5831/HMJ.2014.36.2.425
Abstract
In this paper, we introduce a new concept of a countably sequential space which is a generalization of a sequential space and study some properties of a countably sequential space and relations among the space and related spaces.
15
TOPOLOGICAL PROPERTIES OF GRAPHICAL ARRANGEMENTS
Nguyen, Thi A. ; Kim, Sangwook ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 435~454
DOI : 10.5831/HMJ.2014.36.2.435
Abstract
We show that for any graph G, the proper part of the intersection poset of the corresponding graphical arrangement
has the homotopy type of a wedge of spheres. Furthermore, we also indicate the number of spheres in the wedge, based on the number of spanning forests of G and other graphs that are obtained from G.
16
CERTAIN NEW PATHWAY TYPE FRACTIONAL INTEGRAL INEQUALITIES
Choi, Junesang ; Agarwal, Praveen ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 455~465
DOI : 10.5831/HMJ.2014.36.2.455
Abstract
In recent years, diverse inequalities involving a variety of fractional integral operators have been developed by many authors. In this sequel, here, we aim at establishing certain new inequalities involving pathway type fractional integral operator by following the same lines, recently, used by Choi and Agarwal [7]. Relevant connections of the results presented here with those earlier ones are also pointed out.
17
ON THE BOUND FOR THE SUM OF THE ABSOLUTE VALUE OF MÖBIUS FUNCTION
Kimy, Insuk ; Cho, Myung Hyun ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 467~472
DOI : 10.5831/HMJ.2014.36.2.467
Abstract
With the properties of Riemann zeta function, we find an asymptotic formula of the sum for the absolute value of M
bius function,
, using Dirichlet inversion formula.
18
ERRATUM TO : "LOCAL SPLITTING PROPERTIES OF ENDOMORPHISM RINGS OF PROJECTIVE MODULES"[HONAM MATH. J. 35(2013), NO.4, PP. 747-755]
Lee, Sang Cheol ;
Honam Mathematical Journal, volume 36, issue 2, 2014, Pages 473~474
DOI : 10.5831/HMJ.2014.36.2.473
Abstract