Ruchin, Vyacheslav; Vacaru, Olivia; Vacaru, Sergiu I.
(Cham : Springer, 2017)
Using double 2+2 and 3+1 nonholonomic fibrations on Lorentz manifolds, we extend the concept of W-entropy for gravitational fields in general relativity (GR). Such F- and W-functionals were introduced in the Ricci flow ...