WHAT DOES SPECTRAL THEOREM SAY

[1] BOAS RP, 1960, 13 CAR MON MATH ASS

[2] A COMMUTATIVITY THEOREM FOR NORMAL OPERATORS [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1950, 36 (01) : 35 - 40

[3] HALMOS P, 1951, HILBERT SPACE

[4] Halmos P.R., 1950, MEASURE THEORY

[5] ROSENBLUM M, 1958, J LOND MATH SOC, V33, P376

[6] SEGAL IE, 1951, MEMOIRS AMER MATH 2

[1] BOAS RP, 1960, 13 CAR MON MATH ASS

[2] A COMMUTATIVITY THEOREM FOR NORMAL OPERATORS [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1950, 36 (01) : 35 - 40

[3] HALMOS P, 1951, HILBERT SPACE

[4] Halmos P.R., 1950, MEASURE THEORY

[5] ROSENBLUM M, 1958, J LOND MATH SOC, V33, P376

[6] SEGAL IE, 1951, MEMOIRS AMER MATH 2