Rip cosmologies, wormhole solutions and big trip in the f (T, T) theory of gravity

Rip cosmological models have been investigated in the framework of f (T, T) theory of gravity, where T denotes the torsion and T is the trace of the energy-momentum tensor. These phantom cosmological models revealed that at initial epoch a EoS parameter omega < -1 tends asymptotically at late phase to -1 (omega -> -1). On the other hand, Wormhole Solutions and Big Trip have been subject to an investigation. The wormhole throat radius R(t) and the conditions to be satisfied to produce the Big Trip phenomenon have been discussed.