HIGHLIGHTS
- who: Special Matrices et al. from the (UNIVERSITY) have published the article: Diagonal dominance and invertibility of matrices, in the Journal: (JOURNAL)
- what: The authors characterize in terms of combinatorial structure and sign pattern when such a matrix is invertible which is the common case.
SUMMARY
A matrix A=(aij ) ∈ n( ) is (row) diagonally dominant (DD) if ∣aii∣ ≥ ∑∣aij∣, i=1, …, n. j≠i If each inequality is strict, A is called strictly (row) DD, in which case A is invertible. If A is irreducible, and at least one inequality is . . .
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