Explore a comprehensive lecture on the quantitative global theory of one-frequency quasiperiodic operators presented by Lingrui Ge from Peking University. Delve into topics such as general real functions, dynamic approaches, and prototypical models. Examine the epsilon E concept and its role in the quantitative global theory. Discover applications, engage with more quantitative calculations, and understand the subcritical radius and multiplicative equations. Follow the proof and gain insights into this complex mathematical subject. Participate in a question-and-answer session to clarify concepts and deepen your understanding of periodic and ergodic spectral problems.