On Čech cohomology and weakly confluent mappings into ANR's
On certain homological properties of finite-dimensional compacta. Carriers, minimal carriers and bubbles
On -bubbles in n-dimensional compacta
A topological space X is called an -bubble (n is a natural number, is Čech cohomology with integer coefficients) if its n-dimensional cohomology is nontrivial and the n-dimensional cohomology of every proper subspace is trivial. The main results of our paper are: (1) Any compact metrizable -bubble is locally connected; (2) There exists a 2-dimensional 2-acyclic compact metrizable ANR which does not contain any -bubbles; and (3) Every n-acyclic finite-dimensional -trivial metrizable compactum...
On shape groups and Cech homology groups of a compact space
On shapes of topological spaces
On the Čech and axiomatic cohomology of product spaces
On the fundamental dimension of approximatively 1-connected compacta
On the Number of Relations in The Cohomology of A Fixed Point Set.
On the Whitehead Theorem in shape theory