A new approach to the classification of almost contact metric manifolds via intrinsic endomorphisms

Ilka Agricola, Dario Di Pinto, Giulia Dileo +1

In 1990, D. Chinea and C. Gonzalez gave a classification of almost contact metric manifolds into $2^{12}$ classes, based on the behaviour of the covariant derivative ${\nabla }^g\Phi$ of…