[HTML][HTML] Noether symmetry in f (T) teleparallel gravity

N Sk - Physics Letters B, 2017 - Elsevier
Noether symmetry in teleparallel f (T) gravity, where T is the torsion scalar, has been studied
in the background of Robertson–Walker space–time. It is found that Noether symmetry …

Why scalar–tensor equivalent theories are not physically equivalent?

N Sk, AK Sanyal - International Journal of Modern Physics D, 2017 - World Scientific
Whether Jordan's and Einstein's frame descriptions of F (R) theory of gravity are physically
equivalent, is a long standing debate. However, practically none questioned on true …

Canonical formulation of Pais–Uhlenbeck action and resolving the issue of branched Hamiltonian

K Sarkar, N Sk, R Mandal, AK Sanyal - International Journal of …, 2017 - World Scientific
Canonical formulation of higher order theory of gravity requires to fix (in addition to the
metric), the scalar curvature, which is acceleration in disguise, at the boundary. On the …

Noether symmetry of Palatini F (ℜ) gravity

N Sk - International Journal of Geometric Methods in Modern …, 2018 - World Scientific
In metric formalism, Noether symmetry of F (R) theory of gravity in vacuum and in the
presence of pressureless dust yields F (R)∝ R 3 2 along with the conserved current ddt (a …

Why scalar-tensor equivalent theories are not physically equivalent?

AK Sanyal - arXiv preprint arXiv:1609.01824, 2016 - arxiv.org
Whether Jordan's and Einstein's frame descriptions of F (R) theory of gravity are physically
equivalent, is a long standing debate. However, practically none questioned on true …