"\\begin{split}\\left\\Vert \\mathbf{A}\\right\\Vert =\\left\\{ \\begin{array}{cc} \\max_{i}\\sum_{j}\\left|a_{ij}\\right| & \\textrm{ord}=\\textrm{inf}\\\\ \\min_{i}\\sum_{j}\\left|a_{ij}\\right| & \\textrm{ord}=-\\textrm{inf}\\\\ \\max_{j}\\sum_{i}\\left|a_{ij}\\right| & \\textrm{ord}=1\\\\ \\min_{j}\\sum_{i}\\left|a_{ij}\\right| & \\textrm{ord}=-1\\\\ \\max\\sigma_{i} & \\textrm{ord}=2\\\\ \\min\\sigma_{i} & \\textrm{ord}=-2\\\\ \\sqrt{\\textrm{trace}\\left(\\mathbf{A}^{H}\\mathbf{A}\\right)} & \\textrm{ord}=\\textrm{'fro'}\\end{array}\\right.\\end{split}\n",

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