ON FORMAL EXTENSIONS OF NEAR-FIELDS
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概要
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In this note, the notion of a formal limit "Lim" is introduced. A nonprincipal ultrafilter associated with "Lim" is constructed. A characterization of ultrapower extensions of near-fields in terms of formal limits is given. In fact, we show that a near-fieeld $¥Omega$ is an ultrapower extension of a near-field $K$ if and only if $¥Omega$ is a formal extension of $K$ .
- Yokohama City University and Yokohama National Universityの論文
- 1998-00-00
Yokohama City University and Yokohama National University | 論文
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