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

A generalization of the Chu-Vandermonde convolution is presented and provedwith the integral representation method. This identity can be transformed intoanother identity, which has as special cases two known identities. Anotheridentity that is closely related to this identity is presented and proved.Using the modified geometric series from another paper, some closely relatedidentities are listed. Some corresponding harmonic number identities arederived, which have as special cases some known harmonic number identities. Forone combinatorial sum a recursion formula is derived and used to compute a fewexamples.

A Generalization of the Chu-Vandermonde Convolution and some Harmonic Number Identities