Original Articles

PRELOCALIZATIONS AND NATURAL NUMBERS

Published in: Quaestiones Mathematicae
Volume 13 , issue 3-4 , 1990 , pages: 301–320

DOI: 10.1080/16073606.1990.9631962

Author(s): Mareli Korostenski Department of Mathematics, South Africa , Walter Tholen Department of Mathematics York, Canada

Keywords: 18A99 , 18E35

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Abstract

A natural concept of pointed endofunctors which are close to localizations with respect to both, the reflection property and the preservation of finite limits, is introduced and characterized in terms of factorization systems. These results are applied to two categories of natural numbers.

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