• East Asian mathematical journal
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• v.3
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• pp.21-25
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• 1987

• East Asian mathematical journal
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• v.7 no.2
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• pp.87-94
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• 1992

• Kyungpook Mathematical Journal
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• v.24 no.2
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• pp.127-136
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• 1984

• Kyungpook Mathematical Journal
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• v.33 no.1
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• pp.13-23
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• 1993

• Journal of the Korean Institute of Telematics and Electronics C
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• v.34C no.10
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• pp.98-105
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• 1997

In this work, we proesent a bidirectional approximate reasoning method and fuzzy inference network for interval valued decision making systems. For this, we propose a new type of similarity measure between two fuzzy vectors based on the Ordered Weighted Averaging (OWA) operator. Since the proposed similarity measure has a structure to give the extreme values by choosing a suitable weighting vector of the OWA operator, it can render an interval valued similarity value. From this property, we derive a bidirectional approximate reasoning method based on the similarity measure and show its fuzzy inference network implementation for the decision making systems requiring the interval valued decisions.

• Bulletin of the Korean Mathematical Society
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• v.23 no.2
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• pp.133-140
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• 1986

• Water for future
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• v.47 no.1
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• pp.98-102
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• 2014

• East Asian mathematical journal
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• v.4
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• pp.41-56
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• 1988

In this work we obtain inequalities for coefficients related to functions belonging to two subclasses of univalent functions with negative coefficients, bounds for the modulus of these functions and their derivatives, and the extreme points of these classes. We also show an application of functions belonging to these classes to the fractional calculus.

• East Asian mathematical journal
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• v.4
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• pp.33-39
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• 1988

The object of the present paper is to derive some inequalities for certain integrals of functions belonging to the classes A(n), S*(n,$\alpha$) and K(n,$\alpha$). As the special class of our theorems, we have the corresponding result shown by M. $Obradovi\'{c}$ [2].

• Kyungpook Mathematical Journal
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• v.21 no.1
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• pp.15-23
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• 1981

St. Ruscheweyh suggested new criteria for univalent functions and two problems. In this paper, we shall give the relation between new criteria and fractional calculus and some results for Ruscheweyh's problems in a sense.