The concept of dynamical consistency is introduced to deene a high level transition function for an arbitrary partition of the state space of a nite input-state machine M. The existence of a dynamically consistent transition from a partition member X i to a member X j corresponds to the existence, for every state x in X i , of some (x dependent) control sequence which takes that state directly ...

In a recent pair of contributions [2, 3], starting from a set of results about the relationship between the direct sum decomposition of (linear, time-invariant, differential) behaviors and the solvability of certain two-sided Bézout equations, it was shown that every autonomous behavior can be expressed as a direct sum of irreducible components. In this contribution, we further explore this iss...

We report studies on the nonlinear electronic transport properties of copper point contacts. Utilizing mechanically controllable break junction technique, various contact sizes can be realized to study ensemble-averaged differential conductance spectra at low temperatures. investigate signatures phonon excitations for down atomic scale, where fluctuations arise superimposing signatures. Applyin...