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

Any Boolean straight-line program which computes the transitive closure of an nxn Boolean matrix by successive squaring requires time exceeding any polynomial in n if the space used is o(n). This is the first demonstration of a “natural” algorithm which (1) has a polynomial time implementation and (2) has a small (e.g., O(log2n)) space implementation, but (3) has no implementation running in polynomial time and small space simultaneously. It is also shown that any implementation of Warshall's transitive closure algorithm requires Ω(n) space.

Two familiar transitive closure algorithms which admit no polynomial time, sublinear space implementations