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 $h : \mathbb{R}^2 \to \mathbb{R}^2$ be an orientation preservinghomeomorphism of the plane. For any bounded orbit$\mathcal{O}(x)=\{h^n(x):n\in\mathbb{Z}\}$ there exists a fixed point$x'\in\mathbb{R}^2$ of $h$ linked to $\mathcal{O}(x)$ in the sense of Gambaudo:one cannot find a Jordan curve $C\subseteq\mathbb{R}^2$ around$\mathcal{O}(x)$, separating it from $x'$, that is isotopic to $h(C)$ in$\mathbb{R}^2\setminus\left(\mathcal{O}(x)\cup\{x'\}\right)$.

Linked orbits of homeomorphisms of the plane and Gambaudo-Kolev Theorem