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Communications of the Korean Mathematical Society
Journal Basic Information
pISSN :
1225-1763
eISSN :
2234-3024
Journal DOI :
10.4134/CKMS
Frequency :
Others
Publisher:
The Korean Mathematical Society
Editor in Chief :
Seoung Dal Jung
Volume & Issues
Volume 17, Issue 4 - Oct 2002
Volume 17, Issue 3 - Jul 2002
Volume 17, Issue 2 - Apr 2002
Volume 17, Issue 1 - Jan 2002
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1
열용량 점근에 관하여
;
;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 371~382
DOI : 10.4134/CKMS.2002.17.3.371
Abstract
2
POLYNOMIALS THAT GENERATE A ROW OF PASCAL`S TRIANGLE
Kim, Seon-Hong ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 383~387
DOI : 10.4134/CKMS.2002.17.3.383
Abstract
Let p be an odd prime, and let f(
) be the interpolating polynomial associated with a table of data points (j+1, (equation omitted) ) for 0
j
p. In this article, we find congruence identities modulo p of (p-1)!f(
), (p-2)!f(
), and (p-3)!f(
). Moreover we present some conjectures of these types.
3
ON THE HOMOLOGY OF SCHUR COMPLEXES
Choi, Eun-J. ; Kim, Young-H. ; Kyoung, Il-H. ; Won, Seung-J. ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 389~401
DOI : 10.4134/CKMS.2002.17.3.389
Abstract
We give an upper bound for the degrees of the nonvanishing homology modules of the Schur complex L
λ/
/ø in terms of the depths of the determinantal ideals of ø). Using this fact, we obtain the acyclic theorem for L
λ/ø and the information concerning the support of the homology modules of L
λ/
/ø.
4
UNIFORM STRUCTURES IN BCI-ALGEBRAS
Yoon, Dall-Sun ; Kim, Hee-Sik ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 403~407
DOI : 10.4134/CKMS.2002.17.3.403
Abstract
In this note We discuss the Uniformity in BCI-algebras using Zhang`s congruence relation.
5
ON THE MAXIMALITY OE PRIME IDEALS IN EXCHANGE RINGS
Hong, Chan-Yong ; Kim, Nam-Kyun ; Kwak, Tai-Keun ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 409~422
DOI : 10.4134/CKMS.2002.17.3.409
Abstract
We investigate the relationship between various generalizations of von Neumann regularity condition and the condition that every prime ideal is maximal in exchange rings.
6
A NOTE ON q-DIFFERENCE OPERATORS
Kim, Min-Soo ; Son, Jin-Woo ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 423~430
DOI : 10.4134/CKMS.2002.17.3.423
Abstract
The object of this Paper is to Present a q-analogue of the Newton`s forward-difference interpolation formula. We relate the q-beta function and the q-gamma function by the q-difference operators.
7
THE DOUBLE-COMPLETE PARTITIONS OF INTEGERS
Lee, Ho-Kyu ; Park, Seung-Kyung ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 431~437
DOI : 10.4134/CKMS.2002.17.3.431
Abstract
Representing a positive integer in terms of a sum of smaller numbers with certain conditions has been studied since MacMahon [5] pioneered perfect partitions. The complete partitions is in this category and studied by the second author[6]. In this paper, we study complete partitions with more specified completeness, which we call the double-complete partitions.
8
FREE ARRANGEMENTS AND NICE PARTITIONS
Choi, Hyun-Hee ; Lee, Ki-Suk ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 439~449
DOI : 10.4134/CKMS.2002.17.3.439
Abstract
If an arrangement admits a nice partition, or an arrangement is free, then the characteristic polynomial of the arrangement can be factored. It is known that a free arrangement does not always admit a nice partition. We show that even an inductively free arrangement does not always admit a nice partition.
9
MAXIMAL COMMUTATIVE SUBALGEBRAS OF MATRIX ALGEBRA WITH i(m)
Song, Young-Kwon ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 451~457
DOI : 10.4134/CKMS.2002.17.3.451
Abstract
Let (R, m, k) be a maximal commutative k-subalgebra of M
n/(k) where the index of nilpotency i(m) of m is 3. If the socle of R is of special case, then we can construct some isomorphic maximal commutative subalgebras.
10
SOME FIXED POINT THEOREMS FOR CONTRACTIVE AND EXPANSIVE MAPS
Jiang, Guo-Jing ; Kang, Shin-Min ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 459~465
DOI : 10.4134/CKMS.2002.17.3.459
Abstract
In this paper, axed point theorems for contractive and expansive maps are established, some of which extend a few results of Das and Debata, Edelstein, Fisher, Leader, Shih and Yeh, and Jungck.
11
THE QUOTIENT GROUP GL(A)/exp(A) OF SOME BANACH ALGEBRAS
Han, Hyuk ; Park, Sung-Wook ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 467~474
DOI : 10.4134/CKMS.2002.17.3.467
Abstract
Let A be C(D), A(D), P(T), C(T), or H
/(U). We evaluate the quotient group GL(A) by exp(A).
12
STABLE RANKS OF MULTIPLIER ALGEBRAS OF C*-ALGEBRAS
Sudo, Takahiro ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 475~485
DOI : 10.4134/CKMS.2002.17.3.475
Abstract
We estimate the stable rank, connected stable rank and general stable rank of the multiplier algebras of
-algebras under some conditions and prove that the ranks of them are infinite. Moreover, we show that for any
-unital subhomogeneous
-algebra, its stable rank is equal to that of its multiplier algebra.
13
UNITARY INTERPOLATION FOR OPERATORS IN TRIDIAGONAL ALGEBRAS
Kang, Joo-Ho ; Jo, Young-Soo ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 487~493
DOI : 10.4134/CKMS.2002.17.3.487
Abstract
Given operators X and Y acting on a Hilbert space H, an interpolating operator is a bounded operator A such that AX
14
HöLDER ESTIMATES FOR ∂ IN ANALYTIC POLYHEDRA
Cho, Hong-Rae ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 495~503
DOI : 10.4134/CKMS.2002.17.3.495
Abstract
We consider Holder estimates for ∂ in analytic polyhedra. In the case of dimension 2, it preserves exact Ho1der regularity, and it maps bounded (0,1)-forms into BMO with respect to volume measure.
15
CERTAIN CONFORMALLY INVARIANT CONNECTIONS OF RIZZA MANIFOLDS
Choi, Eun-Seo ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 505~517
DOI : 10.4134/CKMS.2002.17.3.505
Abstract
We introduce certain conformally invariant h-Finsler connection in a Rizza manifold. Using this connection, we find some conformally invariant Finsler tensors. The conformal flatness and the Kaehlerian Finsler manifold with respect to the above connection are investigated.
16
(n + 1)-DIMENSIONAL, CONTACT CR-SUBMANIFOLDS OF (n - 1) CONTACT CR-DIMENSION IN A SASAKIAN SPACE FORM
Kwon, Jung-Hwan ; Pak, Jin-Suk ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 519~529
DOI : 10.4134/CKMS.2002.17.3.519
Abstract
In this paper. We Study (n + 1)-dimensional Contact CR-submanifolds of (n - 1) contact CR-dimension immersed in a Sasakian space form M
2m+1/(c) (2m
17
A NOTE ON WEAKLY FIRST COUNTABLE SPACES
Hon, Woo-Chorl ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 531~534
DOI : 10.4134/CKMS.2002.17.3.531
Abstract
We prove that the star operator and the sequential closure operator on a weakly first countable space are the same and show that the Frechetness is a sufficient condition for a weakly first countable space to be first countable.
18
CHARACTERIZATIONS OF THE EXPONENTIAL DISTRIBUTION BY ORDER STATISTICS AND CONDITIONAL
Lee, Min-Young ; Chang, Se-Kyung ; Jung, Kap-Hun ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 535~540
DOI : 10.4134/CKMS.2002.17.3.535
Abstract
Let X
, X
‥‥,X
n/ be n independent and identically distributed random variables with continuous cumulative distribution function F(x). Let us rearrange the X`s in the increasing order X
1:n/
X
2:n/
‥‥
X
n:n/. We call X
k:n/ the k-th order statistic. Then X
n:n/ - X
n-1:n/ and X
n-1:n/ are independent if and only if f(x)
19
DIVISORS OF THE PRODUCTS OF CONSECUTIVE INTEGERS
Koh, Young-Mee ; Ree, Sang-Wook ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 541~550
DOI : 10.4134/CKMS.2002.17.3.541
Abstract
In this Paper, We look at 3 Simple function L assigning to an integer n the smallest positive integer n such that any product of n consecutive numbers is divisible by n. Investigated are the interesting properties of the function. The function L(n) is completely determined by L(p
k/), where p
k/ is a factor of n, and satisfies L(m
n)
L(m)+L(n), where the equality holds for infinitely many cases.
20
AN INVOLUTION ON THE SHIFTED RIM HOOK TABLEAUX
Lee, Jae-JIn ;
Communications of the Korean Mathematical Society, volume 17, issue 3, 2002, Pages 551~563
DOI : 10.4134/CKMS.2002.17.3.551
Abstract
We Construct a Sign reversing involution on the Shifted rim hook tableaux with some conditions. Using the Stembridge`s combinatorial interpretation for Morris` rule, this involution give a combinatorial proof of the orthogonality of the first kind for the spin characters of
.