An indecomposable -complex. II.
An index and a Nielsen number for n-valued multifunctions
An infinitary version of Sperner's Lemma
We prove an extension of the well-known combinatorial-topological lemma of E. Sperner to the case of infinite-dimensional cubes. It is obtained as a corollary to an infinitary extension of the Lebesgue Covering Dimension Theorem.
An infinite-dimensional torsion-free FP...group.
An intrinsic characterization of the shape of paracompacta by means of non-continuous single-valued maps.
An introduction to shape theory for the nonspecialist
An inverse -theory functor.
An isomorphism form intersection homology to Lp-cohomology.
An isomorphism theorem of Hurewicz type in the proper homotopy category
An. isomorphism theorem of the Hurewicz-type in Borsuk's theory of shape
An Obstruction to the Existence of Affine Structures.
An R-stable ANR which is not FR-stable
An Ulam stability result on quasi-b-metric-like spaces
In this paper a class of general type α-admissible contraction mappings on quasi-b-metric-like spaces are defined. Existence and uniqueness of fixed points for this class of mappings is discussed and the results are applied to Ulam stability problems. Various consequences of the main results are obtained and illustrative examples are presented.
Analytische Erweiterungen von Produkträumen.
Anelli di coomologia dei gruppi di Artin
Aneurysms of pseudoconcave CR manifolds.
Anneaux locaux et espaces de lacets à séries de Poincaré irrationnelles
Anosov theorem for coincidences on nilmanifolds
Suppose that L, L’ are simply connected nilpotent Lie groups such that the groups and in their lower central series have the same dimension. We show that the Nielsen and Lefschetz coincidence numbers of maps f,g: Γ∖L → Γ’∖L’ between nilmanifolds Γ∖L and Γ’∖L’ can be computed algebraically as follows: L(f,g) = det(G⁎ - F⁎), N(f,g) = |L(f,g)|, where F⁎, G⁎ are the matrices, with respect to any preferred bases on the uniform lattices Γ and Γ’, of the homomorphisms between the Lie algebras , ’ of...
Another note on closed -cells in
ANR's and NES's in the category of mappings on metric spaces