报告题目：Johnson and Moser's work in 1982 and our thought 

报告人：周喆，中科院数学与系统科学研究院

时间：2023年5月29日（周一）下午3：30—4：30

地点：东区第五教学楼5501教室

摘要：In the landmark paper [Johnson and Moser, CMP-1982], the authors used the rotation number approach to establish the spectrum of the one-dimensional Schrödinger operator with almost periodic potentials. In this talk, I will present their paper, specifically on how to introduce the concept of rotation numbers. As an entry point, a picture of rotation numbers will be demonstrated. At last, I will discuss our thought on  their paper.