The number of zeros of a tight sign-central matrix

DOI10.1016/j.laa.2005.06.003zbMath1084.15020OpenAlexW1985854226MaRDI QIDQ2568404

Sang-Gu Lee, Si-Ju Kim, Ik-Pyo Kim, Suk-Geun Hwang

Publication date: 10 October 2005

Published in: Linear Algebra and its Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.laa.2005.06.003

zbMATH Keywords

sign pattern matrixsparsitysign-central matrixtight sign-central matrixnumber of zero entries

Mathematics Subject Classification ID

Combinatorial aspects of matrices (incidence, Hadamard, etc.) (05B20) Hermitian, skew-Hermitian, and related matrices (15B57) Linear equations (linear algebraic aspects) (15A06)

Cites Work

• Sign-central matrices
• Tight sign-central matrices
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