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姜英旭,任相奎 嶺南大學校 基礎科學硏究所 1996 基礎科學硏究 Vol.16 No.-
This paper is a contribution to the study of the properties of the lattice of all lattice varieties. Among the properties, that of finite base is investigated here. The question whether the join of two finitely based modular lattices with certain conditions is finitely based is investigated.
Property of lattice on lattice varieties I
Kang, Young-Yug Korean Mathematical Society 1996 대한수학회논문집 Vol.11 No.3
This paper is a contribution to the study of the properties of the lattice of all lattice varieties. Among the properties, that of finite base is investigated here. The question whether the join of two finitely based modular lattice varieties is finitely based is investigated under certain conditions.
Kang, Young-Yug,Park, Kwang-Sung,Kim, Koon-Chan Korean Mathematical Society 1998 대한수학회논문집 Vol.13 No.2
This paper is a contribution to the study of the properties of the lattice of all lattice varieties. Among the properties, that of finite base is investigated here.
Kang, Young-Yug Korean Mathematical Society 1994 대한수학회논문집 Vol.9 No.2
This paper is a contribution to the study of the isomorphism problems for algebras. Among the isomorphism problems, that of global determination is investigated here. That is, our investigation of the problems is concerned with the question whether two algebras are isomorphic when their globals are isomorphic. The answer is not always affirmative. The counterexample, due to E. M. Mogiljanskaja, is the class of all infinite semigroups. But T. Tamura and J. Shafer [6] proved that the class of all groups is globally determined and announced the same result for the class of rectangular bands. Vazenin [7] proved that for any set X, the transformation semigroup $T_{X}$ must be isomorphic to any semigroup S for any P(S)$\simeq$P($T_{X}).(omitted)
An Expansion Technique for Tolerance Approach to Sensitivity Analysis in Linear Programming
Kim, Koonchan,Jo, Young Soo,Yug, Kang Young 한국경영과학회 1996 한국경영과학회 학술대회논문집 Vol.- No.1
The tolerance approach to the sensitivity analysis in linear programming considers simultaneous and independent variations in the coefficients of the objective function or of the right-hand side terms and gives a region in which the coefficients and terms can be changed and still the current optimal basis B for the original problem remains as an optimal basis for the perturbed problem. In this paper we describe a procedure that expands a region S obtained by the tolerance approach into a larger region R, so that more variations in the objective function coefficients or the right-hand side terms are permissible.
Kim, Koon-Chan,Jo, Young-Soo,Kang, Young-Yug 한국경영과학회 1996 韓國經營科學會誌 Vol.21 No.2
The tolerance approach to the sensitivity analysis in linear programming considers simultaneous and independent variations in the coefficients of the objective function or of the right-hand side terms and gives a region in which the coefficients and terms can be changed and still keeps the current optimal basis B for the original problem as an optimal basis for the perturbed problem. In this paper we describe a procedure that expands the region S obtained by the tolerance approach into a larger region R, so that more variations in the objective function coefficients or the right-hand side terms are permissible.