Su un Teorema di Nevanlinna
A number of results are given, extending - in the form of Carlson and Griffiths - an extension of R. Nevanlinna of a classical Picard Theorem.
Minima in control problems with constraints
This paper is devoted to describing second order conditions in the framework of extremal problems, that is, conditions obtained by reducing the optimal control problem to an abstract one in a suitable Banach (or Hilbert) space. The studied problem includes equality constraints both on the end-points and on the state-control trajectory. The second goal is to give a complete description of necessary and sufficient second order conditions for weak local optimality by describing first the associated...
Singular extremals in multi-input time-optimal problems: a sufficient condition
Sufficient optimality conditions for a bang--singular extremal in the minimum time problem
On gravitational and electromagnetic shock waves and their detection
On the geometrical structure of shock waves in general relativity
Optimality and stability result for bang-bang optimal controls with simple and double switch behaviour
Differential pseudoconnections and field theories
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