Quasi-Toeplitz matrix arithmetic: a MATLAB toolbox
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DOI: 10.1007/s11075-018-0571-6
Abstract: A quasi-Toeplitz (QT) matrix is a semi-infinite matrix of the kind A=T(a)+E$A=T(a)+E$ where T(a)=(aj−i)i,j∈ℤ+$T(a)=(a_{j-i})_{i,j\in \mathbb Z^{+}}$, E=(ei,j)i,j∈ℤ+$E=(e_{i,j})_{i,j\in \mathbb Z^{+}}$ is compact and the norms∥a∥W=∑i∈ℤ|ai|$\|a\|_{_{\mathcal {W}}}={\sum }_{i\in \mathbb Z}|a_{i}|$ and ∥E∥2$\|E\|_{2}$ are finite. These properties allow… read more here.
Keywords: toolbox; toeplitz; toeplitz matrix; matrix ... See more keywords