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/

Zendy Plus

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

Zendy Tools

Zendy Open

In this paper, we present a classification of $2$-designs with$\gcd(r,\lambda)=1$ admitting flag-transitive automorphism groups. If $G$ is aflag-transitive automorphism group of a non-trivial $2$-design $\mathcal{D}$with $\gcd(r,\lambda)=1$, then either $(\mathcal{D},G)$ is one of the knownexamples described in this paper, or $\mathcal{D}$ has $q = p^{d}$ points with$p$ prime and $G$ is a subgroup of $A\Gamma L_{1}(q)$.

Block designs with $\gcd(r,\lambda)=1$ admitting flag-transitive automorphism groups