this is for holding javascript data
Namgyun Lee edited DeclareMathOperator_argmin_argmin_newcommand_reals__.tex
about 8 years ago
Commit id: 53e61e4e935c5709904accfcaf0240b409c1382e
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diff --git a/DeclareMathOperator_argmin_argmin_newcommand_reals__.tex b/DeclareMathOperator_argmin_argmin_newcommand_reals__.tex
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\newcommand{\nk}{n_k}
\paragraph{Sparse MRI Appendix A revisited}
Here we provide a detailed derivation of the 'complex' gradient of each term in the cost function as defined in Equation [A1].
Since by definition the 'complex' gradient is just transpose of the 'complex' derivative, we first find expressions in terms of derivatives.
The cost function $f(m) : \complex^m \to \reals$ is given by
\begin{equation}
f(m) = \| \Fu m - y\|^2_{\ell_2} + \lambda \| \Psi m\|_{\ell_1}.