TY  - BOOK
AU  - Halmos, Paul R.
TI  - Introduction to Hilbert space and the theory of spectral multiplicity 
SN  - 9780486817330
U1  - 517.982.22 
PY  - 2017///
CY  - Newburyport : 
PB  - Dover Publications, 
KW  - HILBERT SPACE
ER  -