AVVISO DI
SEMINARIO
Matematica
Scuola
Normale Superiore
Pisa
(Sala Conferenze – Collegio Puteano)
ore
14.00
Dong Han KIM
Korean
Institute for Advanced Studies, Seoul.
Terrà un seminario dal
titolo:
"The
dynamical Borel-Cantelli lemma for interval
maps"
Abstract
The
dynamical Borel-Cantelli lemma for some interval maps are
considered.
For
expanding maps with bounded derivatives any sequence of interval satisfies the
dynamical Borel-Cantelli lemma . If a map has an indifferent fixed point then
the dynamical Borel-Cantelli lemma does not hold even in the case that the map
has a finite absolutely continuous invariant measure and summable decay of
correlations.
ore
15.00
Korean
Institute for Advanced Studies, Seoul.
Terrà un seminario dal titolo:
“Complexity
of dynamical systems via subgroup actions and entropy
dimension”
Abstract
To study the complexity of deterministic dynamical systems we introduce notions
of directional entropy and entropy dimension as hisomorphism invariants. We
investigate the properties of these notions and also the relations between
them.
Tutti
gli interessati sono invitati a partecipare.