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

The article considers the procedure of connection of graphs to the edges of acyclic graph and its influence on the sandpile group of the graph thusobtained. A series of classes of graphs CH_n(a_1,...,a_n) is defined. Recurrentand non-recurrent formulas for calculating the sandpile groups of all graphs ofclasses CH_n (a_1, ..., a_n) are proposed.

The sandpile groups of graphs of classes CH_n (a_1, ..., a_n)