Dimension des courbes planes, papiers plies et suites de Rudin-Shapiro
Essential mappings onto products of manifolds
Extensions, retracts, and absolute neighborhood retracts in proper shape theory
Extraresolvability and cardinal arithmetic
Following Malykhin, we say that a space is extraresolvable if contains a family of dense subsets such that and the intersection of every two elements of is nowhere dense, where is a nonempty open subset of is the dispersion character of . We show that, for every cardinal , there is a compact extraresolvable space of size and dispersion character . In connection with some cardinal inequalities, we prove the equivalence of the following statements: 1) , 2) is extraresolvable and...
Groupoids, the Phragmen-Brouwer property, and the Jordan curve theorem.
Groups of homeomorphisms and normal subgroups of the group of permutations.
Homogeneity and rigidity in Erdös spaces
The classical Erdös spaces are obtained as the subspaces of real separable Hilbert space consisting of the points with all coordinates rational or all coordinates irrational, respectively. One can create variations by specifying in which set each coordinate is allowed to vary. We investigate the homogeneity of the resulting subspaces. Our two main results are: in case all coordinates are allowed to vary in the same set the subspace need not be homogeneous, and by specifying different sets for different...
Homogeneous cohomology manifolds which are inverse limits
Irreducibility of inverse limits on intervals
A procedure for obtaining points of irreducibility for an inverse limit on intervals is developed. In connection with this, the following are included. A semiatriodic continuum is defined to be a continuum that contains no triod with interior. Characterizations of semiatriodic and unicoherent continua are given, as well as necessary and sufficient conditions for a subcontinuum of a semiatriodic and unicoherent continuum M to lie within the interior of a proper subcontinuum of M.
Kennzeichnung von Bogen
Lattice of -compact topological spaces
Levels in algebra and topology.
Locally bounded topologies on the rational field
Locally compact spaces C-tame at infinity.
Locally Compact Spaces ℓ-Tame At Infinity
Locally well-behaved paracompacta in shape theory
Mean with respect to a map
Measure preserving analytic diffeomorphisms of countable dense sets in and
Mutational retracts and extensions of mutations
Nonisomorphic thin-tall superatomic Boolean algebras