Cosmological Model in $f(R,\mathcal{G})$ Gravity : Stability Analysis and Observational Constraints from DESI DR2

Shivani Sharma, R. Chaubey

In this article, we examine the dynamical system of the Decoupled Power-law $f(R,\mathcal{G})$ gravity model. This $f(R,G)$ model framework is composed of interactions between dark…