IJPAM: Volume 86, No. 5 (2013)


Young Key Kim1, Won Keun Min2
1Department of Mathematics
MyongJi University
Youngin, 449-728, KOREA
2Department of Mathematics
Kangwon National University
Chuncheon, 200-701, KOREA

Abstract. The purpose of this paper is to introduce the notion of σ-structures and to investigate some properties for the structures. In particular, we investigate enlarging and quasi-enlarging operations induced by σ-structures.

Received: February 21, 2013

AMS Subject Classification: 54A05

Key Words and Phrases: σ-structure, quasi-enlargement, preserving maps

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DOI: 10.12732/ijpam.v86i5.3 How to cite this paper?
International Journal of Pure and Applied Mathematics
ISSN printed version: 1311-8080
ISSN on-line version: 1314-3395
Year: 2013
Volume: 86
Issue: 5