Über das Gewicht und den Überdeckungstyp von uniformen Räumen und einige Formen des Satzes von Banach-Steinhaus.
Über Distanzfunktionen mit Werten in angeordneten Halbgruppen.
Über einen Graphensatz für lineare Abbildungen mit metrisierbarem Zielraum.
Über metrische Räume und
Ultra -ideals in lattice implication algebras
We define an ultra -ideal of a lattice implication algebra and give equivalent conditions for an -ideal to be ultra. We show that every subset of a lattice implication algebra which has the finite additive property can be extended to an ultra -ideal.
Ultra -Ideals in lattice implication algebras and -algebras
A mistake concerning the ultra -ideal of a lattice implication algebra is pointed out, and some new sufficient and necessary conditions for an -ideal to be an ultra -ideal are given. Moreover, the notion of an -ideal is extended to -algebras, the notions of a (prime, ultra, obstinate, Boolean) -ideal and an -ideal of an -algebra are introduced, some important examples are given, and the following notions are proved to be equivalent in -algebra: (1) prime proper -ideal and Boolean -ideal,...
Ultrametric sets in Euclidean point spaces.
Ultrametric spaces bi-Lipschitz embeddable in
It is proved that if an ultrametric space can be bi-Lipschitz embedded in , then its Assouad dimension is less than n. Together with a result of Luukkainen and Movahedi-Lankarani, where the converse was shown, this gives a characterization in terms of Assouad dimension of the ultrametric spaces which are bi-Lipschitz embeddable in .
Ultraparacompactness in certain Pixley-Roy hyperspaces
Un critère de métrisabilité d’un convexe compact à partir de
Una caracterización de los espacios topológicos de Moore.
Un'algebra locale reticolata che interviene nella teoria dei sistemi
Une structure uniforme sur un espace
Uniform AR's and ANR's
Uniform atoms on
Uniform completeness of topological spaces
Uniform dimension of mappings (Preliminary communication)
Uniform homeomorphisms between Banach spaces
Uniform ideal completions
Uniform maps into normed spaces
Thirteen properties of uniform spaces are shown to be equivalent. The most important properties seem to be those related to modules of uniformly continuous mappings into normed spaces, and to partitions of unity.