21 citations · 81 across the 9 of their papers we have counts for
3 papers · 1 filter
Conflict between some higher-order curvature invariant terms
Dalia Saha, Mohosin Alam, Ranajit Mandal +1
A viable quantum theory does not allow curvature invariant terms of different higher orders to be accommodated in the gravitational action. We show that there is indeed a conflict…
Equivalent and inequivalent canonical structures of higher order theories of gravity
Ranajit Mandal, Abhik Kumar Sanyal
Canonical formulation of higher order theory of gravity can only be accomplished associating additional degrees of freedom, which are extrinsic curvature tensor. Consequently, to m…
History of cosmic evolution with modified Gauss-Bonnet-dilatonic coupled term
Subhra Debnath, Soumendra Nath Ruz, Ranajit Mandal +1
Gauss-Bonnet-dilatonic coupling in four dimension plays an important role to explain late time cosmic evolution. However, this term is an outcome of low energy string effective act…