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【学术报告】2019年9月5日Yushi Nakano来我院举办学术讲座

2019-09-04 15:38:23    浏览次数:

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报告人:Yushi Nakano (Tokai University)

报告题目: Quenched exponential mixing for random expanding semiflows

报告摘要: We consider quenched random perturbations of suspension semiflows of expanding maps on the circle. It is known that if the semiflow satisfies a certain generic condition (called transversality condition), then the transfer operator of the semiflow has a spectral gap. Using technology in semiclassical analysis we show that the spectral gap is preserved under small random perturbations. This implies exponential decay of quenched random correlation functions for smooth observables at small noise levels. This is a joint work with Simon Lloyd and Jens Wittsten.

报告时间:2019年9月5日(星期四)下午3:00 

报告地点:科技楼南楼702