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 investigate $ Y(R) F^2 $-type coupling of electromagnetic fields togravity. After we derive field equations by a first order variational principlefrom the Lagrangian formulation of the non-minimally coupled theory, we lookfor static, spherically symmetric, magnetic monopole solutions. We point outthat the solutions can provide possible geometries which may explain theflatness of the observed rotation curves of galaxies.

Gravity and Electromagnetism with $Y(R)F^2$-type Coupling and Magnetic Monopole Solutions