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JOURNALS // Matematicheskie Zametki // Archive

Mat. Zametki, 1973 Volume 13, Issue 1, Pages 113–120 (Mi mzm7111)

This article is cited in 1 paper

Countable indecomposable dispersed order types

A. G. Pinus

Institute of Mathematics, Siberian Branch, Academy of Sciences of the USSR, USSR

Abstract: In this paper we consider some properties of indecomposable dispersed order types and estimate the cardinality of the set of distinct indecomposable order types of given rank which can be represented in the form of the product of order types which are not unity. In addition, we refute Rotman's proposition that every countable indecomposable dispersed order type is, to within equivalence, the finite product of order types of the form $\omega^k$, $(\omega^k)^*$, $\gamma_i$, $\gamma_i^*$, where $k$ is arbitrary, and $i$ is the limiting ordinal.

UDC: 519.5

Received: 20.04.1971


 English version:
Mathematical Notes, 1973, 13:1, 67–70

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