  We make a number of remarks on linearized gravity with cosmological constant
in any dimension, which, we argue, can be useful in a quantum gravity
framework. For this purpose we assume that the background space-time metric
corresponds to the de Sitter or anti-de Sitter space. Moreover, via the
graviton mass and the cosmological constant correspondence, we make some
interesting observations, putting special attention on the possible scenario of
a graviton-tachyon connection. We compare our proposed formalism with the
Novello and Neves approach.

General Relativity and Quantum Cosmology