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

Argyres and Martone have produced a beautiful and deep classification of thescale invariant Special Geometries in rank 2. They get a puzzle: thescale-invariant geometries with Coulomb dimensions $\{2,2\}$ appear to dependon four free complex parameters, while on physical grounds we expect only twomarginal deformations. We show that the isoclasses of $\{2,2\}$ SpecialGeometries are indeed parametrized by a complex space of dimension 2, in factsby a non-singular del Pezzo surface of degree 5, a result which exactly matchesthe physical expectation by Gaiotto. This solves the puzzle.

Solving a puzzle in the rank 2 $\mathcal{N}=2$ classification by Argyres and Martone