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

In 1895 Wiman introduced the Riemann surface    of genus 6 over the complex field ℂ defined by the equation  X  6 + Y  6 + ℨ  6 +( X  2 + Y  2 + ℨ  2 )( X  4 + Y  4 + ℨ  4 )−12 X  2  Y  2  ℨ  2  = 0, and showed that its full automorphism group is isomorphic to the symmetric group  S  5 . We show that this holds also over every algebraically closed field  of characteristic  p  ≥ 7. For  p  = 2, 3 the above polynomial is reducible over , and for  p  = 5 the curve    is rational and Aut() ≅ PGL(2,). We also show that Wiman’s  19 2  -maximal sextic    is not Galois covered by the Hermitian curve H 19  over the finite field  19 2  .

An 𝔽 p 2 -maximal Wiman sextic and its automorphisms