14. Let T be a linear operator on a finite-dimensional inner product space V. Then T is self-adjoint if and only if its matrix in every orthonormal basis is a self-adjoint matrix.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
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Chapter7: Distance And Approximation
Section7.2: Norms And Distance Functions
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14. Let T be a linear operator on a
finite-dimensional inner product space V. Then T is
self-adjoint if and only if its matrix in every
orthonormal basis is a self-adjoint matrix.
Transcribed Image Text:14. Let T be a linear operator on a finite-dimensional inner product space V. Then T is self-adjoint if and only if its matrix in every orthonormal basis is a self-adjoint matrix.
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