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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In 1995 J.W. Heath asked which exactly n-to-one maps are compositions of exactly k-to-one maps with 1 < k < n. This paper deals with compositions of covering maps. Exactly n-to-one covering maps on locally arcwise connected continua that are not factorable into covering maps of order < n - 1 are constructed for all n's, and characterized in algebraic terms (fundamental groups). They are not proper compositions of exactly k-to-one maps, open maps, or locally one-to-one maps.

Covering maps that are not compositions of covering maps of lesser order