Spaces with -weakly hereditarily closure-preserving sn-networks.
Spaces without Large Projective Subspaces.
Spaces in which all prime -ideals of are minimal or maximal
Quasi -spaces are defined to be those Tychonoff spaces such that each prime -ideal of is either minimal or maximal. This article is devoted to a systematic study of these spaces, which are an obvious generalization of -spaces. The compact quasi -spaces are characterized as the compact spaces which are scattered and of Cantor-Bendixson index no greater than 2. A thorough account of locally compact quasi -spaces is given. If is a cozero-complemented space and every nowhere dense zeroset...
Spaces Y Homeomorphic to ßY Y.
Spaces --.
and separation axioms between and .
Special almost P-spaces
Motivated by some examples, we introduce the concept of special almost P-space and show, using the reflection principle, that for every space of this kind the inequality “" holds.
Special bases for compact metrizable spaces
Special lattices of compactifications
Special sets of reals and weak forms of normality on Isbell--Mrówka spaces
We recall some classical results relating normality and some natural weakenings of normality in -spaces over almost disjoint families of branches in the Cantor tree to special sets of reals like -sets, -sets and -sets. We introduce a new class of special sets of reals which corresponds to the corresponding almost disjoint family of branches being -separated. This new class fits between -sets and perfectly meager sets. We also discuss conditions for an almost disjoint family being potentially...
Specker-Kompaktifizierungen von lokal kompakten topologischen Gruppen.
Spectra of elements in the group ring of SU(2)
We present a new method for establishing the ‘‘gap” property for finitely generated subgroups of , providing an elementary solution of Ruziewicz problem on as well as giving many new examples of finitely generated subgroups of with an explicit gap. The distribution of the eigenvalues of the elements of the group ring in the -th irreducible representation of is also studied. Numerical experiments indicate that for a generic (in measure) element of , the “unfolded” consecutive spacings...
Spectra of finitely generated Boolean flows.
Spectra of rings and lattices.
Spectral Calculus and Lipschitz Extension for Barycentric Metric Spaces
The metric Markov cotype of barycentric metric spaces is computed, yielding the first class of metric spaces that are not Banach spaces for which this bi-Lipschitz invariant is understood. It is shown that this leads to new nonlinear spectral calculus inequalities, as well as a unified framework for Lipschitz extension, including new Lipschitz extension results for CAT (0) targets. An example that elucidates the relation between metric Markov cotype and Rademacher cotype is analyzed, showing that...
Spectral properties of G-symbolic Morse shifts
Spectral structures and uniform continuity
Spectres d'espaces et de groupes topologiques
Spherical maps
Spingroups and spherical means II