0
$\begingroup$

I have a linear operator $\Phi$ in $\mathbb{R}^n$ and have created another operator that I believe to be its adjoint (transpose) $\Phi^T$.

What is the most direct way to verify that my $\Phi^T$ is indeed correct without having access to the matrix representation of $\Phi$ or $\Phi^T$?

1 Answers 1