- 권한신청
- P-ISSN1226-0657
- E-ISSN2287-6081
- KCI
ISSN : 1226-0657
권호 목록
- 2024 (31권)
- 2023 (30권)
- 2022 (29권)
- 2021 (28권)
- 2020 (27권)
- 2019 (26권)
- 2018 (25권)
- 2017 (24권)
- 2016 (23권)
- 2015 (22권)
- 2014 (21권)
- 2013 (20권)
- 2012 (19권)
- 2011 (18권)
- 2010 (17권)
- 2009 (16권)
- 2008 (15권)
- 2007 (14권)
- 2006 (13권)
- 2005 (12권)
- 2004 (11권)
- 2003 (10권)
- 2002 (9권)
- 2001 (8권)
- 2000 (7권)
- 1999 (6권)
- 1998 (5권)
- 1997 (4권)
- 1996 (3권)
- 1995 (2권)
- 1994 (1권)
16권 3호
초록
Abstract
It is well known that for a sequence a = (<TEX>$a_0,\;a_1$</TEX>,...) the general term of the dual sequence of a is <TEX>$a_n\;=\;c_0\;^n_0\;+\;c_1\;^n_1\;+\;...\;+\;c_n\;^n_n$</TEX>, where c = (<TEX>$c_0,...c_n$</TEX> is the dual sequence of a. In this paper, we find the general term of the sequence (<TEX>$c_0,\;c_1$</TEX>,... ) and give another method for finding the inverse matrix of the Pascal matrix. And we find a simple proof of the fact that if the general term of a sequence a = (<TEX>$a_0,\;a_1$</TEX>,... ) is a polynomial of degree p in n, then <TEX>${\Delta}^{p+1}a\;=\;0$</TEX>.
초록
Abstract
We introduce the concept of intuitionistic fuzzy minimal structure which is an extension of the intuitionistic fuzzy topological space. And we introduce and study the concepts of intuitionistic fuzzy M -continuity, intuitionistic fuzzy Mopen mappings and several types of intuitionistic fuzzy minimal compactness on intuitionistic fuzzy minimal spaces.
초록
Abstract
We study the geometry of screen conformal light like hypersurfaces M of a semi- Riemannian manifold M. The main result is a characterization theorem for screen conformal lightlike hypersurfaces of a semi-Riemannian space form.
초록
Abstract
A Hilbert space operator T is a 2-isometry if <TEX>$T^{{\ast}2}T^2\;-\;2T^{\ast}T+I$</TEX> = O. We shall study some properties of 2-isometries, in particular spectra of a non-unitary 2-isometry and give an example. Also we prove with alternate argument that the Weyl's theorem holds for 2-isometries.
초록
Abstract
Let f(x) = <TEX>$x^n\;+\;a$</TEX> be a binomial polynomial in Z[x] and <TEX>$f_m(x)$</TEX> be the m-th iterate of f(x). In this work we study a necessary condition to be the Galois group of <TEX>$f_m(x)$</TEX> is isomorphic to a wreath product group <TEX>$[C_n]^m$</TEX> where <TEX>$C_n$</TEX> is a cyclic group of order n.
초록
Abstract
In this paper, we obtain the general solution and the generalized HyersUlam stability theorem for an additive functional equation <TEX>$af(x+y)+2f({\frac{x}{2}}+y)+2f(x+{\frac{y}{2})=(a+3)[f(x)+f(y)]$</TEX>for any fixed integer a.
초록
Abstract
The purpose of this paper is to establish a strong convergence of an implicit iteration process with errors to a common fixed point for a finite family of continuous strongly pseudocontractive mappings. The results presented in this paper extend and improve the corresponding results of References [2, 6, 11-12].
초록
Abstract
In this paper, we introduce Debreu integral of fuzzy mappings in Banach spaces in terms of the Debreu integral of set-valued mappings, investigate properties of Debreu integral of fuzzy mappings in Banach spaces and obtain the convergence theorem for Debreu integral of fuzzy mappings in Banach spaces.