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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We consider pyramids made of one-dimensional pieces of fixed integer length aand which may have pairwise overlaps of integer length from 1 to a. We provethat the number of pyramids of size m, i.e. consisting of m pieces, equals(am-1,m-1) for each a >= 2. This generalises a well known result for a = 2. Abijective correspondence between so-called right (or left) pyramids and a-arytrees is pointed out, and it is shown that asymptotically the average width ofpyramids is proportional to the square root of the size.

Enumeration of pyramids of one-dimensional pieces of arbitrary fixed integer length