1-3 of 3 Books

Spectral analysis, differential equations, and mathematical physics
By Fritz Gesztesy,H. Holden,Barry Simon,Gerald Teschl
Recent Progress on Operator Theory and Approximation in Spaces of Analytic Functions
Recent Progress on Operator Theory and Approximation in Spaces of Analytic Functions
By Catherine Beneteau,Alberto A. Condori,Constanze Liaw,Ross, William T.,Alan A. Sola

Nilpotent Structures in Ergodic Theory
By Bernard Host,Bryna Kra