
What is the meaning of "Hermitian"? - Mathematics Stack Exchange
A Hermitian matrix is a matrix that is equal to its conjugate transpose. This generalizes the concept of a "symmetric matrix", since every real symmetric matrix is Hermitian. However, there are certainly …
functional analysis - Distinguishing between symmetric, Hermitian and ...
In any reasonable sense, symmetric=hermitian=self-adjoint. For genuinely unbounded operators, symmetric does not imply self-adjoint, and, unless the thing is already self-adjoint, its adjoint is …
If $A,B$ are Hermitian and - Mathematics Stack Exchange
Sep 26, 2019 · Thanks! This makes more sense, I forgot A and B were also hermitian in this problem. I appreciate the additional elaboration.
Why hermitian, after all? [duplicate] - Physics Stack Exchange
Jun 24, 2016 · Hermitian operators (or more correctly in the infinite dimensional case, self-adjoint operators) are used not because measurements must use real numbers, but rather because we …
linear algebra - Matrices which are both unitary and Hermitian ...
Hermitian matrices are precisely the matrices admitting a complete set of orthonormal eigenvectors such that the corresponding eigenvalues are real. So unitary Hermitian matrices are precisely the matrices …
Difference between hermitian and sesquilinear form
A sesquilinear form with the property $\langle x,y\rangle = \overline {\langle y,x \rangle}$ is called hermitian. Since we have extra terminology it would seem that one would define a sesquilinear map …
functional analysis - The difference between hermitian, symmetric and ...
I am struggling with the concept of hermitian operators, symmetric operators and self adjoint operators. All of the relevant material seems quite self contradictory, and the only notes I have do not
Prove AB is hermitian if A is hermitian and B is hermitian
Aug 19, 2013 · Prove AB is hermitian if A is hermitian and B is hermitian Ask Question Asked 12 years, 3 months ago Modified 12 years, 3 months ago
If $AA^*=AA$, how to prove $A$ is an Hermitian? [duplicate]
Jul 23, 2015 · @OpenSeason Maybe quicker: any Hermitian matrix can be diagonalized. It's obvious for diagonal matrices..
Orthonormal basis for Hermitian matrix - Mathematics Stack Exchange
Suppose there is a hermitian matrix. Then, Can we always find out orthonormal basis for this matrix ? And, Is there any relationship between hermitian matrix and hermitian transformation? If m...