• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 춘계학술대회논문집A
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• pp.674-679
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• 2001

For a large deformation nonlinear dynamic analysis of two-dimensional frictional contact, the linear complementarity formulation combined with a linearization is used. The solution procedure is based on the total Lagrangian formulation with a predictor and corrector scheme. For contact searching, a hierarchical scheme with a circular territory is used. A second-order approximation of displacements is used to detect impact time and position. The formulation is illustrated by means of numerical examples.

• 경영정보학연구
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• 제12권1호
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• pp.107-130
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• 2010

지식경영 전략과 기업성과 간의 실증연구는 연구자에 따라 그 결과가 매우 다르게 나타나고 있다. 이러한 연구결과의 불일치는 실제 비지니스 환경하에서 대다수의 기업은 다양한 지식경영 전략들을 동시에 활용하고 있음에도 불구하고 대다수의 기존의 연구는 개별 지식경영 전략과 기업성과간의 관계에만 초점을 두고 있었기 때문이다. 본 연구는 이와 같은 문제점을 해결하기 위해 경제학이론 가운데 하나인 상호보완이론(complementarity theory)을 기반으로 지식경영 전략들 간의 상호보완관계를 파악하고 이러한 상호보완관계가 기업성과에 미치는 영향을 전체적인 관점(holistic perspective)으로 분석하고자 한다. 이를 위해, 기존 연구를 바탕으로 지식경영 전략을 도출하였으며 국내 139개의 대기업을 기반으로 실증연구를 수행하였으며 이를 통해 지식경영 전략 간의 상호보완관계가 기업성과에 미치는 영향을 분석하였다. 학문적 측면에서 보면 본 연구는 경제학으로부터 새로운 이론과 분석방법론을 도입함으로써 기존 연구의 한계를 극복할 수 있는 새로운 연구 프레임웍과 방법론을 제시하였으며 이를 통해 지식경영 연구의 지평을 넓힐 수 있을 것으로 기대된다. 실무적 관점에서 보면 기업성과를 향상시킬 수 있는 다양한 지식경영 전략들 간의 상호보완관계를 제시함으로써 경영자에게 효과적인 지식경영 전략을 구축할 수 있는 가이드라인의 역할을 할 수 있을 것으로 기대된다.

• 대한수학회논문집
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• 제24권3호
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• pp.425-432
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• 2009

This paper introduces a local non-positivity of two set-valued mappings (F,Q) and considers the existences and properties of solutions for set-valued mixed vector FQ-implicit variational inequality problems and set-valued mixed vector FQ-complementarity problems in the neighborhood of a point belonging to an underlined domain K of the set-valued mappings, where the neighborhood is contained in K. This paper generalizes and extends many results in [1, 3-7].

• 호남수학학술지
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• 제19권1호
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• pp.157-164
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• 1997

We are concerned with three classes of matrices that are relevant to the linear complementary problem. We prove that within the class of $P_0$-matrices, the Q-matrices are precisely the regular matrices and we show that the same characterizations hold for an L-matrix as well, and that the symmetric copositive-plus Q-matrices are precisely those which are strictly copositive.

• Journal of applied mathematics & informatics
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• 제4권2호
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• pp.309-322
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• 1997

In this paper we introduce and study a new class of completely generalized mildly nonlinear complementarity problems for fuzzy mappings and construct some new iterative algorithms. We also show the existence of solution and the convergence of iterative sequences generated by the algorithm. Our results extend some recent results of Noor, Chang and huang.

• Journal of applied mathematics & informatics
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• 제29권5_6호
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• pp.1285-1293
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• 2011

We establishes the polynomial convergence of a new class of path-following methods for semidefinite linear complementarity problems (SDLCP) whose search directions belong to the class of directions introduced by Monteiro [9]. Namely, we show that the polynomial iteration-complexity bound of the well known algorithms for linear programming, namely the predictor-corrector algorithm of Mizuno and Ye, carry over to the context of SDLCP.

• Journal of applied mathematics & informatics
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• 제7권3호
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• pp.813-831
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• 2000

In recent years, the theory of Wiener-Hopf equations has emerged as a novel and innovative technique for developing efficient and powerful numerical methods for solving variational inequalities and complementarity problems. In this paper, we provide an account of some of the fundamental aspects of the Wiener-Hopf equations with major emphasis on the formulation, computational algorithms, various generalizations and their applications. We also suggest some open problems for further research with sufficient information and references.

• Journal of applied mathematics & informatics
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• 제11권1_2호
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• pp.165-172
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• 2003

In this paper, we introduce the concept of well-posedness for general variational inequalities and obtain some results under pseudomonotonicity. It is well known that monotonicity implies pseudomonotonicity, but the converse is not true. In this respect, our results represent an improvement and refinement of the previous known results. Since the general variational inequalities include (quasi) variational inequalities and complementarity problems as special cases, results obtained in this paper continue to hold for these problems.

• 대한수학회논문집
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• 제34권2호
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• pp.671-684
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• 2019

In this paper, we propose a new interior point method for solving nonlinear complementarity problems. In this method, we use a new profitable searching direction and instead of using the logarithmic quadratic term, we use a square root quadratic term. We prove the global convergence of the proposed method under the assumption that F is monotone. Some preliminary computational results are given to illustrate the efficiency of the proposed method.

• East Asian mathematical journal
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• 제4권
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• pp.25-31
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• 1988