TY - BOOK AU - Halmos,Paul R. TI - Introduction to Hilbert Space and the Theory of Spectral Multiplicity T2 - Dover Books in Science and Mathematics SN - 9780486817330 U1 - 515.733 PY - 2017/// CY - New York PB - Dover Publications KW - Spectral theory (Mathematics) KW - Hilbert space N1 - Originally published: New York : Chelsea Publishing Company, 1957 ER -