On a relative uniform completion of an archimedean lattice ordered group |
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Authors: | Štefan Černák Judita Lihová |
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Affiliation: | (1) Mathematical Institute, Slovak Academy of Sciences, Grešákova 6, SK-040 01 Košice, Slovakia;(2) Institute of Mathematics, P. J. Šafárik University, Jesenná 5, SK-041 54 Košice, Slovakia;(3) Mathematical Institute, Slovak Academy of Sciences, Grešákova 6, SK-040 01 Košice, Slovakia |
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Abstract: | The notion of a relatively uniform convergence (ru-convergence) has been used first in vector lattices and then in Archimedean lattice ordered groups. Let G be an Archimedean lattice ordered group. In the present paper, a relative uniform completion (ru-completion) of G is dealt with. It is known that exists and it is uniquely determined up to isomorphisms over G. The ru-completion of a finite direct product and of a completely subdirect product are established. We examine also whether certain properties of G remain valid in . Finally, we are interested in the existence of a greatest convex l-subgroup of G, which is complete with respect to ru-convergence. This work was supported by Science and Technology Assistance Agency under the contract No. APVT-20-004104. Supported by Grant VEGA 1/3003/06. |
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Keywords: | Cantor extension relative uniform completion completely subdirect product direct factor basis |
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