superdiagonal — English Dictionary

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superdiagonal

Noun

The diagonal of a matrix that lies directly above and to the right of the main diagonal.

Examples

More examples (1)

We classify all free spectrahedra that are circular, that is, closed under multiplication by exp(i t): up to unitary equivalence, the coefficients of a minimal LMI defining a circular free spectrahedron have a common block decomposition in which the only nonzero blocks are on the superdiagonal.

Word forms

superdiagonals

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