5 papers
A Conley-type Lyapunov function for the strong chain recurrent set
Olga Bernardi, Anna Florio, Jim Wiseman
Let be a continuous flow on a compact metric space . In this article we constructively prove the existence of a continuous Lyapunov funct…
Monetary-fiscal interactions under price level targeting
Guido Ascari, Anna Florio, Alessandro Gobbi
The adoption of a "makeup" strategy is one of the proposals in the ongoing review of the Fed's monetary policy framework. Another suggestion, to avoid the zero lower bound, is a mo…
Torsion of instability zones for conservative twist maps on the annulus
Anna Florio, Patrice Le Calvez
For a twist map of the annulus preserving the Lebesgue measure, we give sufficient conditions to assure the existence of a set of positive measure of points with non-zero asymp…
On the set of points of zero torsion for negative-torsion maps of the annulus
Anna Florio
For negative-torsion maps on the annulus we show that on every essential curve there is at least one point of zero torsion. As an outcome, we deduce that the Hausdo…
The generalized recurrent set, explosions and Lyapunov functions
Olga Bernardi, Anna Florio, Jim Wiseman
We consider explosions in the generalized recurrent set for homeomorphisms on a compact metric space. We provide multiple examples to show that such explosions can occur, in contra…