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 show that the geometry of $4n$-dimensional quaternionic K\"ahler spaceswith a locally free $\mathbb{R}^{n+1}$-action admits a Gibbons-Hawking-likedescription based on the Galicki-Lawson notion of quaternionic K\"ahler momentmap. This generalizes to higher dimensions a four-dimensional construction, dueto Calderbank and Pedersen, of self-dual Einstein manifolds with two linearlyindependent commuting Killing vector fields. As an application, we use this newAnsatz to give an explicit equivariant completion of the twistor spaceconstruction of the local c-map proposed by Ro\v{c}ek, Vafa and Vandoren.

An analogue of the Gibbons-Hawking Ansatz for quaternionic K\"ahler spaces