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

For $\mathrm{O}(\mathrm{q},k)$, the orthogonal group over a field $k$ ofcharacteristic 2 with respect to a quadratic form $\mathrm{q}$, we discuss theisomorphism classes of fixed points of involutions. When the quadratic space iseither totally singular or nonsingular, a full classification of theisomorphism classes is given. We also give some implications of these resultsfor a general quadratic space over a field of characteristic $2$.

Fixed point groups of involutions of type $\mathrm{O}(\mathrm{q},k)$ over a field of characteristic two