Casartelli, M.; Dall'Asta, L.; Vezzani, A.; Vivo, P. - In: The European Physical Journal B - Condensed Matter and … 52 (2006) 1, pp. 91-105
The non-ergodic behavior of the deterministic Fixed Energy Sandpile (DFES), with Bak-Tang-Wiesenfeld (BTW) rule, is explained by the complete characterization of a class of dynamical invariants (or toppling invariants). The link between such constants of motion and the discrete Laplacians...
