Abstract
An archimedean ℓ-group is called epicomplete (or universally σ-complete, or sequentially inextensible) if it is divisible, σ-complete and laterally σ-complete. Various characterizations of such G are known in case the G have weak order units. The “theorem” of the title is a characterization of such G which have no weak order unit; it involves the requirement that G have a certain kind of representation. The “question” of the title is whether every epicomplete G has such a representation.
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References
Anderson, M., Feil, T.: Lattice-Ordered Groups. Reidel (1988)
Ball R., Hager A.: Epicomplete archimedean ℓ-groups and vector lattices. Trans. Amer. Math. Soc. 322, 459–478 (1990)
Ball R., Hager A.: Epicompletion of archimedean ℓ-groups and vector lattices with weak unit. J. Austral. Math. Soc. 48, 25–56 (1990)
R. Ball , R., Hager, A. Johnson, D., Kizanis, A.: The epicomplete monoreflection of an archimedean lattice-ordered group. Alg. Universalis 54, 417–434 (2005)
Bernau S.: Unique representation of archimedean lattice groups and normal lattice rings. Proc. London Math. Soc. 15, 599–631 (1965)
Bigard, A., Keimel, K., Wolfenstein, S.: Groupes et Anneaux Réticulés. Springer (1977)
Brown L., Nakano H.: A representation theorem for Archimedean linear lattices. Proc. Amer. Math. Soc. 17, 835–837 (1966)
Buskes G.: Disjoint sequences and completeness properties. Indag. Math 47, 11–19 (1985)
Comfort, W., Negrepontis, S.: Continuous Pseudometrics. Dekker (1975)
Conrad P.: The additive group of an f-ring. Can. J. Math. 26, 1157–1168 (1974)
Darnel, M.: Theory of Lattice-Ordered Groups. Dekker (1995)
Dashiell F., Hager A., Henriksen M.: Order-Cauchy completions of rings and vector lattices of continuous functions. Canad. J. Math. 32, 657–685 (1980)
Engelking, R.: General Topology. Heldermann (1989)
Fremlin D.: Inextensible Riesz spaces. Math. Proc. Cambridge Phil. Soc. 77, 71–89 (1975)
Gillman, L., Jerison, M.: Rings of Continuous Functions. Van Nostrand (1960)
Hager, A., Martinez, J.: α-projectible and laterally α-complete archimedean lattice-ordered groups. Ethiopian J. Sci. 19 (Supplement), 73–84 (1996)
Hager, A., Robertson, L.: Representing and ringifying a Riesz space. Symp. Math. 21, pp.411–431. Academic Press (1977)
Henriksen M., Johnson D.: On the structure of a class of archimedean lattice-ordered algebras. Fund. Math. 50, 73–94 (1961)
Holland, C. (curator): The Black Swamp Problem Book. Problem 74 (2003)
Johnson D.: On a representation theory for a class of lattice-ordered rings. Proc. London Math. Soc. 12, 207–226 (1962)
Johnson D.: A representation theorem revisited. Alg. Universalis 56, 303–314 (2007)
Johnson D., Kist J.: Prime ideals in vector lattices. Canad. J. Math. 14, 517–528 (1962)
Kizanis A.: Weak units in epicompletions of archimedean lattice-ordered groups. Rocky Mt. J. Math. 30, 1323–1341 (2000)
Luxemburg, W., Zaanen, A.: Riesz Spaces, Vol. I. North - Holland (1971)
Maeda, F., Ogasawara, T.: Representation of vector lattices. J. Sci. Hiroshima Univ. A, 17–35 (1942)
Papert D.: A representation theory for lattice-groups. Proc. London Math. Soc. 12(3), 100–120 (1960)
Sikorski, R.: Boolean Algebras (3rd ed.). Springer-Verlag (1969)
Tzeng, Z.: Extended real-valued functions and the projective resolution of a compact space. Ph. D. Thesis, Wesleyan Univ. (1970)
Veksler A.: A new construction of Dedekind completion of vector lattices and ℓ-groups with division. Siber. Math. J. 10, 890–896 (1969)
Veksler A.: P-sets in topological spaces. Soviet Math. Socl. Dokl. 11, 953–956 (1970)
Veksler A., Geiler V.: Order and disjoint completeness of linear partially ordered spaces, Siber. Math. J. 13, 30–35 (1972)
Yosida, K.: On the representation of the vector lattice. Proc. Imp. Acad. Tokyo 18, 479–482 (1941-42)
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Presented by J. Martinez.
In memory of Paul F. Conrad
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Ball, R.N., Hager, A.W., Johnson, D.G. et al. A theorem and a question about epicomplete archimedean lattice-ordered groups. Algebra Univers. 62, 165–184 (2009). https://doi.org/10.1007/s00012-010-0049-4
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DOI: https://doi.org/10.1007/s00012-010-0049-4