Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-20T12:31:08.029Z Has data issue: false hasContentIssue false

Some Homological Pathology in Vector Lattices

Published online by Cambridge University Press:  20 November 2018

David M. Topping*
Affiliation:
The University of Chicago
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The purpose of this paper is to point out a number of curious phenomena in the category of (real) vector lattices and linear lattice homomorphisms. Birkhoff (3, p. 221, Ex. 2 and Problem 96) called attention to the question of constructing models of the free objects with more than one generator in this category, a problem recently solved by E. C. Weinberg (9). In §6 we construct a more manageable class of (non-free) projective vector lattices. Here, however, there is a countability restriction which suggests strong connections with free and projective Boolean algebras (in the category of Boolean algebras and their homomorphisms, such algebras must satisfy the countable chain condition (6)).

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1965

References

1. Banaschewski, B., Totalgeordnete Moduln, Arch. Math., 7 (1956), 430–40.Google Scholar
2. Bass, H., Finitistic dimension and a homological generalization of semi-primary rings, Trans. Amer. Math. Soc, 95 (1960), 466–88.Google Scholar
3. Birkhoff, G., Lattice theory (Providence, 1948).Google Scholar
4. Bonsall, F. F., Sublinear Junctionals and ideals in partially ordered vector spaces, Proc. London Math. Soc, 4 (1954), 402–18.Google Scholar
5. Goffman, C., Remarks on lattice ordered groups and vector lattices I. Caratheodory functions, Trans. Amer. Math. Soc, 88 (1958), 107–20.Google Scholar
6. Halmos, P. R., Injective and projective Boolean algebras, Proc. Symp. Pure Math., vol. II ﹛Lattice Theory), 114-22.Google Scholar
7. Maeda, F. and Ogasawara, T., Representation of vector lattices, J. Sci. Hiroshima Univ. (ser. A), 12 (1942), 1735 and 12 (1943), 217–43 (Japanese). See also Kakutani's review, Math. Rev., 10 (1949), 544–5.Google Scholar
8. Nakayama, T., Note on the lattice-ordered groups, Proc. Imp. Acad. Tokyo, 18 (1942), 14.Google Scholar
9. Weinberg, E. C., Free lattice-ordered abelian groups, Math. Ann., 151 (1963), 187–99.Google Scholar
10. Zelinsky, D., Raising idempotents, Duke Math. J., 21 (1954), 315–22.Google Scholar