On the signatur of four-manifolds with universal covering spin.
On the simultaneous embedding of uncountably many distinct wild arcs with one wild endpoint in , a geometric approach
On the Space of the Linear Homeomorphisms of a Polyhedral TV-Cell with Two Interior Vertices*.
On the stratification of the orbit space for the action of automorphisms on connections [Book]
On the strong local simple connectivity of the decomposition spaces of toroidal decompositions
On the structure of closed 3-manifolds
We will show that for every irreducible closed 3-manifold M, other than the real projective space P³, there exists a piecewise linear map f: S → M where S is a non-orientable closed 2-manifold of Euler characteristic χ ≡ 2 (mod 3) such that for all x ∈ M, the closure of the set is a cubic graph G such that consists of 1/3(2-χ) + 2 simply connected regions, M - f(S) consists of two disjoint open 3-cells such that f(S) is the boundary of each of them, and f has some additional interesting properties....
On the Structure of Foliated 3-Manifolds Separated by a Compact Leaf
On the structure of Hilbert cube manifolds
On the Symmetries of the Fake C P2.
On the topological classification of pseudofree group actions on 4-manifolds. I.
On the topological structure of compact 5-manifolds
We classify the genus one compact (PL) 5-manifolds and prove some results about closed 5-manifolds with free fundamental group. In particular, let be a closed connected orientable smooth -manifold with free fundamental group. Then we prove that the number of distinct smooth -manifolds homotopy equivalent to equals the -nd Betti number (mod ) of .
On the Varieties Parametrizing Rational Space Curves with Fixed Normal Bundle.
On topological factors of 3 dimensional locally connected continuum embeddable in
On topological neighbourhoods
On Topological Span
On universal groups and three-manifolds.
On universality of countable and weak products of sigma hereditarily disconnected spaces
Suppose a metrizable separable space Y is sigma hereditarily disconnected, i.e., it is a countable union of hereditarily disconnected subspaces. We prove that the countable power of any subspace X ⊂ Y is not universal for the class ₂ of absolute -sets; moreover, if Y is an absolute -set, then contains no closed topological copy of the Nagata space = W(I,ℙ); if Y is an absolute -set, then contains no closed copy of the Smirnov space σ = W(I,0). On the other hand, the countable power of...
On universality of finite powers of locally path-connected meager spaces
It is shown that for every integer n the (2n+1)th power of any locally path-connected metrizable space of the first Baire category is 𝓐₁[n]-universal, i.e., contains a closed topological copy of each at most n-dimensional metrizable σ-compact space. Also a one-dimensional σ-compact absolute retract X is found such that the power X^{n+1} is 𝓐₁[n]-universal for every n.
On (w) and (ts)-regular stratifications.
On ω-essential mappings onto manifolds