開催日時
2023/10/13 金 15:00 - 17:00
場所
3号館108号室
講演者
宇敷 重廣
概要
Some attracting invariant sets are observed numerically for dynamical systems defined by quadratic rational functions on P^2. These invariant objects seem to be isomorphic to Herman rings. They are found in families of quadratic rational maps modified from those birational maps inducing surface automorphisms. Possible bifurcations, which could generate such attractors, are indicated.