日時   5/22(金) 15:00-
場所   コラボレーションルーム1
発表者 佐藤譲氏（北海道大学）
タイトル  Noise-induced phenomena in one dimensional maps
         （一次元写像におけるノイズによって引き起こされる現象）

Abstract:

Noise-induced phenomena in Belousov-Zhabotinsky map (BZ map)
are investigated.  We found that (i) noise-induced chaos and
noise-induced order coexist depending on size of fluctuation
of noise, and that (ii) these phenomena are robustly
observed in window region of BZ map indicated by numerically
calculated Lyapunov exponents.  A physically tractable
framework for random dynamical systems is proposed to study
observability of weak chaos.