References
- Linear Algebra and Its Appl. v.208/209 Sign-Central Matrices R. A. Brualdi;T. Ando
- The matrices of sign-solvable linear systems R. A. Brualdi;B. L. Shader
- Soviet Math. (IZ. VUZ) v.334 Solubility of the system Ax = 0,x≥ 0 with indefinite coefficients G. V. Davydov;I. M. Davydova
- Linear Alg. and Its Appls. v.24 Sign patterns of inverse-positive matrices C. R. Johnson;F. T. Leighton;H. A. Robinson
- Linear Alg. and Its Appls. v.59 Signsolvability revisited V. Klee;R. Ladner;R. Manber
- Electronic J. Linear Algebra v.4 Sign consistency and solvability of constrained linear systems G. Y. Lee;B. L. Shader
- Korean J. Comput. and Appl. Math. (Series A) v.7 Nonnegativity of reducible sign idempotent matrices Se-Won Park;Sang-Gu Lee;Seok-Zun Song