Abstract
In the paper, the spaces of weakly additive τ-smooth and Radon functionals are investigated. It is proved that the functors of weakly additive τ-smooth and Radon functionals weakly preserve the density of Tychonoff spaces, and the functor of weakly additive τ-smooth functionals forms a monad in the category of Tychonoff spaces and their continuous mappings. Examples and remarks are given showing that these functors fail to satisfy certain Shchepin normality conditions. Problems having positive solutions for normal functors are presented.
Similar content being viewed by others
References
T. O. Banakh, “Topology of spaces of probability measures. I. The functors P τ and \(\hat P\),” Mat. Stud., 5 (1995), 65–87.
τ A. A. Zaitov, τ-smooth weakly additive functionals and probability measures, in: Abstracts of Papers, Conference of Young Scientists Dedicated to the 60th Anniversary of ASRUz [in Russian], 2003, pp. 41–42.
E. V. Shchepin, “Functors and uncountable degrees of compacta,” Uspekhi Mat. Nauk [Russian Math. Surveys], 36 (1981), no. 3(219), 3–62.
T. N. Radul, “On the functor of order-preserving functionals,” Comment. Math. Univ. Carol., 39 (1998), no. 3, 609–615.
A. Ch. Chigogidze, “Extension of normal functors,” Vestnik Moskov. Univ. Ser. I Mat. Mekh. [Moscow Univ. Math. Bull.] (1984), no. 6, 23–26.
V. V. Fedorchuk, “Probability measures in topology,” Uspekhi Mat. Nauk [Russian Math. Surveys], 46 (1991), no. 1, 41–80.
R. B. Beshimov, “On weakly additive functionals,” Mat. Stud., 18, no. 2, 179–186.
A. A. Zaitov, “On categorical properties of the functor of order-preserving functionals,” Methods of Functional Analysis and Topology, 9 (2003), no. 4, 357–364.
V. V. Fedorchuk and V. V. Filippov, General Topology: Basic Constructions [in Russian], Moskov. Gos. Univ., Moscow, 1988.
V. V. Fedorchuk and Yu. V. Sadovnichii, “On some topological and categorical properties of measures with alternating signs,” Fundam. Prikl. Mat., 5 (1999), no. 2, 597–618.
V. V. Fedorchuk, “Multivalued retractions and characterizations of n-soft mappings,” Trudy Moskov. Mat. Obshch. [Trans. Moscow Math. Soc.], 51 (1988), 169–207.
S. Eilenberg and J. Moore, “Adjoint functors and triples.,” Ill. J. Math., 9 (1965), no. 3, 381–398.
Author information
Authors and Affiliations
Additional information
__________
Translated from Matematicheskie Zametki, vol. 79, no. 5, 2006, pp. 681–693.
Original Russian Text Copyright © 2006 by A. A. Zaitov.
Rights and permissions
About this article
Cite this article
Zaitov, A.A. Some categorical properties of the functors O τ and O R of weakly additive functionals. Math Notes 79, 632–642 (2006). https://doi.org/10.1007/s11006-006-0072-0
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11006-006-0072-0