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 study sigma-models on noncommutative spaces, notably on noncommutativetori. We construct instanton solutions carrying a nontrivial topological chargeq and satisfying a Belavin-Polyakov bound. The moduli space of these instantonsis conjectured to consists of an ordinary torus endowed with a complexstructure times a projective space $CP^{q-1}$.Comment: Latex, 10 page

Non-linear σ-models in noncommutative geometry: fields with values in finite spaces