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

We construct, for each 2<r<18, an explicit family of higher Chow cycles oftype (2,1) on a family of lattice-polarized K3 surfaces of generic Picard rankr, and prove that the indecomposable part of this cycle is non-torsion for verygeneral members of the family. These are the first explicit examples of suchfamilies in middle Picard rank. Our construction is based on singular doubleplane model of K3 surfaces, and the proof of indecomposability is done by adegeneration method.

Higher Chow cycles on some K3 surfaces with involution