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

Let  R  be a-ring. In this article, we introduce good-clean elements and left-suitable elements in  R , respectively. An elementis good-clean if it can be written as the sum of a projection and a unitary element. An elementis left-suitable if there exists a projectionsuch thatSeveral properties of them are given and their characterizations are derived by the solvability of the Sylvester equationin a ring. Finally, we use generalized inverses to give the existence criterion of left-suitable elements.

Suitable elements, -clean elements and Sylvester equations in rings with involution