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

The purpose of this short note is to present two existence results concerningsymplectic and lagrangian structures in the derived setting, in situationswhere the constructions of [Ca] and [PTVV] do not apply. For this we show thatsymplectic structures can be constructed out of Calabi-Yau structures onsheaves of dg-categories, or out of \emph{orientations} on sheaves of rigiddg-categories. These results follow from two main theorems: the HKR theorem andthe cyclotomic aspect of traces in rigid infty-categories.

Structures symplectiques et de Poisson sur les champs en cat\'egories