Category:Subdiagonals
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This category contains results about Subdiagonals.
Definitions specific to this category can be found in Definitions/Subdiagonals.
Let $\mathbf A = \sqbrk a_{m n}$ be a matrix.
The subdiagonals of $A$ are the diagonals of $\mathbf A$ lying parallel to and below the main diagonal of $\mathbf A$.
That is, the elements $\map a {r + k, s + k}$ where $s < r$.
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