On tolerances representable as $R \circ R^-$

Lipparini, Paolo

On tolerances representable as $R \circ R^-$

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We give examples and counterexamples concerning varieties in which every tolerance is representable as $R \circ R^-$, for some reflexive and admissible relation $R$.
5 pages

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General Mathematics, 08A30, 08B05

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http://salesiana.dossiersoluciones.com/handle/123456789/159066

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0610091
http://arxiv.org/abs/math/0610091
Expanded and published in Acta Sci. Math. (Szeged) 73 (2007), no. 1-2, 31--51

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On tolerances representable as $R \circ R^-$

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