Dynamical system analysis in teleparallel gravity with boundary term

Understand

In this paper, we perform the dynamical system analysis of the cosmological models framed in the extended teleparallel gravity, the $f (T, B)$ gravity.

• We use the mapping, $f(T, B)$ $\rightarrow$-$T$+$\tilde{f}(T, B)$, and define the dynamical variables to form the autonomous dynamical system.
• The critical points are obtained in two well-motivated forms of $f (T, B)$, one that involves the logarithmic form of the boundary term B, and the other one is the non-linear form of the boundary term.
• The position of critical points is shown in the different evolutionary phases of the Universe such as radiation, matter, and de-Sitter phase.