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 $\Omega\subset\mathbb{R}^n, n\geq 2$, be an open set. For an ellipticdifferential operator $L$ on $\Omega$ with real analytic coefficients and apoint $p\in\Omega$, we construct a smooth function $g$ with the followingproperties: $g$ is flat at $p$ and the equation $Lu=g$ has no smooth localsolution $u$ that is flat at $p$.

Non-solvability in the flat category of elliptic operators with real analytic coefficients