Geodesic
Representation Theorem for Minimal $\sigma$-Algebras
Zbornik radova, Tome 2 (1977) no. 10, p. 99

Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

The purpose of this paper is to state some properties of minimal separating $\sigma$-algebras and of $\sigma$-compact topological spaces. Original motivation of this work is to consider the problem of existence of a minimal separating $\sigma$-algebra without any singleton. This fine problem, comes from a problem of statistics, is proposed by H. Morimoto who communicated me the following elementary but fundamental example of such a $\sigma$-algebra which appears in [18]. 
@article{ZR_1977_2_10_a7,
     author = {Kanji Namba},
     title = {Representation {Theorem} for {Minimal} $\sigma${-Algebras}},
     journal = {Zbornik radova},
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     publisher = {mathdoc},
     volume = {2},
     number = {10},
     year = {1977},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZR_1977_2_10_a7/}
}
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Kanji Namba. Representation Theorem for Minimal $\sigma$-Algebras. Zbornik radova, Tome 2 (1977) no. 10, p. 99 . http://geodesic.mathdoc.fr/item/ZR_1977_2_10_a7/