Carreira, A.Hongler, M. O.Mendes, R. V.2013-01-072013-01-072013-01-07199110.1016/0375-9601(91)91044-E2-s2.0-0348128345https://infoscience.epfl.ch/handle/20.500.14299/87675A family of ergodic invariants for discrete time dynamical systems is constructed from a variational formulation of the dynamics. Some examples are presented for the case of one-dimensional piecewise linear maps. © 1991.text::journal::journal article::research article