Congratulations to Professor K. Itô
Special Feature: Award of the 1st Gauss Prize to K. Ito
In this paper we describe a story how a Moscow mathematician solved an important problem in ergodic theory using Itô multiple stochastic integrals.
Keywords and phrases:ergodic theory spectrum of dynamical system Itô multiple stochastic integrals
Mathematics Subject Classification (2000):37A05
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© The Mathematical Society of Japan and Springer 2007