Introduction to Hilbert space by Halmos

Introduction to Hilbert Space by P. R. Halmos (1987, Hardcover)

A HILBERT SPACE PROBLEM BOOK by Paul R. Halmos

Introduction to Hilbert Space by Sterling K. Berberian, (Hardcover)

Introduction to Electromagnetic - Hardcover, by Paul Clayton R.; - Good

A Hilbert Space Problem Book by P R Halmos

Introduction to Hilbert Space, 1957 2nd Edition, Paul Halmos

Introduction to Hilbert Space and the Theory of Spectral Multiplicity by Halmos