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Additional
unitary operator
English Wikipedia - The Free Encyclopedia
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Unitary operator
In
functional analysis
, a branch of
mathematics
, a
unitary operator
(not to be confused with a unity operator) is defined as follows:
Definition 1.
A
bounded linear operator
on a
Hilbert space
is called a
unitary operator
if it satisfies , where is the
adjoint
of , and is the
identity
operator.
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