I am encountering a problem that would require me to look into matrices with the following form: the elements $A_{m,n}$ only depend on $m-n$ or $m+n,$ such as: $$ A = \begin{bmatrix} a&b&c\\ d&a&b\\ e&d&a\\ \end{bmatrix} $$ Is there an acronym for such matrices?
2026-04-07 22:47:25.1775602045
Matrix whose element $A_{m,n}$ only depend on $m - n$ or $m+n$
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