• 한국정보과학회논문지:소프트웨어및응용
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• 제30권10호
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• pp.894-903
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• 2003

XML은 점차 널리 사용되고 있지만, 일반 사용자가 편집기를 이용해서 XML 문서를 작성하기에는 아직 많은 어려움이 있다. XML 문서 중에서 상당 부분은 정형화된 데이타를 처리하기 위한 데이터 중심 XML 문서이며, 이러한 형태의 문서인 경우에 초보자도 폼(form) 형태의 GUI를 이용해서 쉽게 작성할 수 있다. 본 논문에서는 데이타 중심 XML 문서에 대해서 모델 기반으로 폼 형태의 XML 편집기를 자동적으로 생성할 수 있는 방법과 편집기 생성기인 XED를 소개한다. XML 문서의 DTD는 연속, 선택, 반복의 구조로 이루어져 있으며, 이러한 구조는 DDG (Document Decomposition Graph) 그래프로 표현될 수 있다. XED는 XML의 DDG에 사용자가 프리젠테이션 규칙을 적용함으로써 XML 편집기를 자동적으로 생성할 수 있고, 사용자가 생성된 편집기의 레이아웃과 GUI 속성을 직접 조작을 통해서 변경할 수 있는 방법을 제공한다.

• 대한수학회지
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• 제49권1호
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• pp.153-164
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• 2012

In this paper, we study the existence, non-existence, and multiplicity of positive solutions for a coupled telegraph system using the xed-point theorem of cone expansion/compression type, the upper-lowe solutions method, and xed point index theory.

• East Asian mathematical journal
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• 제25권2호
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• pp.197-213
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• 2009

In this paper, we give some new denitions of $\cal{L}^*_\cal{M}$-fuzzy metric spaces and we prove a common xed point theorem for two mappings in complete $\cal{L}^*_\cal{M}$-fuzzy metric spaces. We get some improved versions of several xed point theorems in complete $\cal{L}^*_\cal{M}$-fuzzy metric spaces.

• Korean Journal of Mathematics
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• 제24권1호
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• pp.107-138
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• 2016

Let $a{\geqslant}2$ be a xed integer in this paper. By using the method of Goldston, Pintz and Yildirm, we will prove that there are innitely many almost-primes which can be represented as $p+a^m$ in at least two dierent ways.

• East Asian mathematical journal
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• 제25권1호
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• pp.89-96
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• 2009

In this paper, we present a unique common xed point theorem under weak compatible mappings of type(A), which extends and generalizes a result of Achari [1].

• 충청수학회지
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• 제29권4호
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• pp.613-629
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• 2016

In this paper, we introduced the notion of multiplier of Boolean algebras and discuss related properties between multipliers and special mappings, like dual closures, homomorphisms on B. We introduce the notions of xed set $Fix_f(X)$ and normal ideal and obtain interconnection between multipliers and $Fix_f(B)$. Also, we introduce the special multiplier ${\alpha}_p$a nd study some properties. Finally, we show that if B is a Boolean algebra, then the set of all multipliers of B is also a Boolean algebra.

• Korean Journal of Mathematics
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• 제22권2호
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• pp.339-348
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• 2014

In this paper, we investigate the solution of the following functional inequality $${\parallel}f(x)+f(y)+f(az),\;w{\parallel}{\leq}{\parallel}f(x+y)-f(-az),\;w{\parallel}$$ for some xed non-zero integer a, and prove the generalized Hyers-Ulam stability of it in non-Archimedean 2-normed spaces.

• 대한수학회논문집
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• 제26권1호
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• pp.51-65
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• 2011

In this paper, a composite iterative process is introduced for a generalized equilibrium problem and a pair of nonexpansive mappings. It is proved that the sequence generated in the purposed composite iterative process converges strongly to a common element of the solution set of a generalized equilibrium problem and of the common xed point of a pair of nonexpansive mappings.

• Korean Journal of Mathematics
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• 제24권1호
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• pp.41-49
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• 2016

In this paper, using xed point method, we prove the Hyers-Ulam stability of the following functional equation $$\hspace{15}f+(x+y+z)+f({\sigma}(x)+y+z)+f(x+{\sigma}(y)+z)+f(x+y+{\sigma}(z))\\=4f(x)+4f(y)+4f(z)$$ with involution in paranormed spaces.

• East Asian mathematical journal
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• 제32권3호
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• pp.319-332
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• 2016

In this paper, we introduce the notion of generalized ${\alpha}-{\psi}$-Geraghty multivalued mappings and investigate the existence of a xed point of such multivalued mappings. We present a concrete example and an application on integral equations illustrating the obtained results.