Isometries in Riesz groups
Milan Jasem (1986)
Czechoslovak Mathematical Journal
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Milan Jasem (1986)
Czechoslovak Mathematical Journal
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Sylvia Pulmannová (2001)
Commentationes Mathematicae Universitatis Carolinae
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It is shown that divisible effect algebras are in one-to-one correspondence with unit intervals in partially ordered rational vector spaces.
Ramiro H. Lafuente-Rodríguez (2007)
Czechoslovak Mathematical Journal
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We study solvability of equations of the form in the groups of order automorphisms of archimedean-complete totally ordered groups of rank 2. We determine exactly which automorphisms of the unique abelian such group have square roots, and we describe all automorphisms of the general ones.
David J. Foulis (2003)
Mathematica Slovaca
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