• 대한수학회지
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• 제33권3호
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• pp.685-692
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• 1996

Subshifts of finite type can be classified by various equivalence relations. The most important equivalence relation is undoubtedly strong shift equivalence, i.e., conjugacy. In [W], R. F. Williams introduced shift equivalence which is weaker than conjugacy but still sensitive.

• 대한수학회보
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• 제37권3호
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• pp.451-459
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• 2000

In this paper, we observe the relation between the attainability of contingent claims and solutions of associated difference-differential equations. And we find the lower bound estimate of fair price using the minimax statistical approach.

• 대한수학회논문집
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• 제33권2호
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• pp.459-471
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• 2018

We obtain a relation between generalized Hausdorff and packing multifractal premeasures and generalized Hausdorff and packing multifractal measures. As an application, we study a general formalism for the multifractal analysis of one probability measure with respect to an other.

• 대한수학회지
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• 제31권4호
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• pp.629-632
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• 1994

Let (M, g) be a Riemannian manifold. The relation between a (pointwise) conformal metric of the metric g and the scalar curvature of this new metrics is investigated by Kazdan, Warner and Schoen (cf. [1, 4]).

• 대한수학회논문집
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• 제13권2호
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• pp.273-280
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• 1998

We construct factors of type III and of type $II_\infty$ over the Hilbert spaces on the equivalence relations.

• 대한수학회지
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• 제36권1호
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• pp.15-36
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• 1999

In this paper, we determine the dimension of the rectangular product of certain finite lattices. In face, if L1 and a L2 be finite lattices which satisfy the some conditions, then we have dim (L1$\square$L2) = dim(L1) + dim(L2) - 1.

• 대한수학회보
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• 제40권2호
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• pp.309-317
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• 2003

In this paper we study the relation of Euler characteristic with respect to cohomology with compact support in F$_{p}$-coefficient for the fibration of ENR's and generalize some properties on proper G-spaces for locally compact Lie group G.G.

• 대한수학회지
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• 제36권6호
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• pp.1021-1031
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• 1999

In this paper we introduce matrix representations of polygroups over hyperrings and show such representations induce representations of the fundamental group over the corresponding fundamental ring. We also introduce the notion of a polygroup hyperring generalizing the notion of a group ring. We establish homo-morphisms among various polygroup hyperrings.

• East Asian mathematical journal
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• 제24권4호
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• pp.399-405
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• 2008

In this paper, we get another proof of L. A. Rubel and C. C. Yang's theorem. It is more vivid technique. By using the relation between normal families and shared values we prove the theorem.

• 충청수학회지
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• 제21권1호
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• pp.99-106
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• 2008

In this paper, we establish some recurrence relations which is satisfied by the quotient moments of the lower record values from the standard generalized extreme value (GEV) distribution.