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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The paper suggests a new --- to the best of the author's knowledge ---characterization of decisions which are optimal in the multi-objectiveoptimization problem with respect to a definite proper preference cone, aEuclidean cone with a prescribed angular radius. The main idea is to use theangle distances between the unit vector and points of utility space. Anecessary and sufficient condition for the optimality in the form of anequation is derived. The first-order necessary optimality conditions are alsoobtained.

On Optimality Conditions for Multi-objective Problems with a Euclidean Cone of Preferences