Hamiltonian dynamics and Noether symmetries in Extended Gravity Cosmology

Understand

We discuss the Hamiltonian dynamics for cosmologies coming from Extended Theories of Gravity.

• In particular, minisuperspace models are taken into account searching for Noether symmetries.
• The existence of conserved quantities gives selection rule to recover classical behaviors in cosmic evolution according to the so called Hartle criterion, that allows to select correlated regions in the configuration space of dynamical variables.
• We show that such a statement works for general classes of Extended Theories of Gravity and is conformally preserved.