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

In a real Hilbert spaces H a smooth operator F is studied, whose derivativeat each point of its domain is a symmetric operator. In terms of abstractboundary conditions locally self-adjoint extensions of this operator aredescribed. We use some concepts and facts from symplectic differentialgeometry.

Locally Self-adjoint Extensions of Nonlinear Smooth Operators and Abstract Boundary Conditions