English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The negligibility theorems of infinite-dimensional topology have finitedimensional analogues. The role of the Hilbert cube /" is played by euclidean n-space E", and for any nonnegative integer k < n, fc-dimensional dense ^-subsets of E" exist which play the role of the pseudo-boundary of /". Their complements are (n — k — l)-dimensional dense G¡ pseudo-interiors of E". Two kinds of fc-dimensional pseudo-boundaries are constructed, one from universal compacta, the other from polyhedra. All the constructions extend to topological manifolds.

Pseudo-boundaries and pseudo-interiors in Euclidean spaces and topological manifolds