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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The cubic H\'enon-Heiles system contains parameters, for most values ofwhich, the system is not integrable. In such parameter regimes, the generalsolution is expressible in formal expansions about arbitrary movable branchpoints, the so-called psi-series expansions. In this paper, the convergence ofknown, as well as new, psi-series solutions on real time intervals is proved,thereby establishing that the formal solutions are actual solutions

Psi-Series Solutions of the Cubic Hénon-Heiles System and Their Convergence