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

We answer an open question concerning the boundedness of canonical fiber spaces in high dimensions and prove the following: for any set of integers    n  ⩾  3   ,and    N  &gt;  0   , there exists a nonsingular projective   n  ‐fold   X   of general type so that   X   is canonically fibered by   d  ‐dimensional varieties   F   withp  g    (  F  )   ⩾  N   . This disproves the desired boundedness parallel to Beauville's boundedness theorem [‘L'application canonique pour les surfaces de type général’,  Invent. Math . 55 (1979) 121–140] in the surface case.

Unboundedness of fiber invariants of canonically fibered varieties of general type