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 define the secondary Hochschild complex for an entwining structure over acommutative $k$-algebra $B$. We show that this complex carries the structure ofa weak comp algebra. We obtain two distinct cup product structures for thesecondary cohomology groups. We also consider a subcomplex on which the two cupproducts coincide and which satisfies the axioms for being a comp algebra. Thecohomology of this subcomplex then forms a Gerstenhaber algebra. We alsoconstruct a bicomplex that controls the deformations of the entwining structureover $B$.

Weak comp algebras and cup products in secondary Hochschild cohomology of entwining structures