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

Let $\Lambda$ be a numerical semigroup and $I\subset \Lambda$ be an ideal of$\Lambda$. The graph $G_I(\Lambda)$ assigned to an ideal $I$ of $\Lambda$ is agraph with elements of $(\Lambda \setminus I)^*$ as vertices and any twovertices $x,y$ are adjacent if and only if $x+y \in I$. In this paper we give acomplete characterization (up to isomorphism ) of the graph $G_I(\Lambda)$ tobe planar, where $I$ is an irreducible ideal of $\Lambda$. This will finallycharacterize non planar graphs $G_I(\Lambda)$ corresponding to irreducibleideal $I$.

Classification of Planar Graphs Associated to the Ideal of the Numerical Semigroup