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

We introduce a notion of positive pair of contact structures on a 3-manifoldwhich generalizes a previous definition of Eliashberg-Thurston and Mitsumatsu.Such a pair gives rise to a locally integrable plane field $\lambda$. We provethat if $\lambda$ is uniquely integrable and if both structures of the pair aretight, then the integral foliation of $\lambda$ doesn't contain any Reebcomponent whose core curve is homologous to zero. Moreover, the ambientmanifold carries a Reebless foliation. We also show a stability theorem "\`a laReeb" for positive pairs of tight contact structures.

Paires de structures de contact sur les vari\'et\'es de dimension trois