3x3 Symmetric Sign Patterns which Allow orRequire Algebraic Positivity
碩士 === 國立中興大學 === 應用數學系所 === 106 === A sign pattern matrix (or sign pattern) is a matrix with entries in the set $left { +,-, 0 ight }$. For a real matrix $B$, $sgn(B)$ is the matrix obtained by replacing each positive (respectively, negative, zero) entry of $B$ with + (respectively, -, 0). A squar...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Others |
| Language: | en_US |
| Published: |
2018
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| Online Access: | http://ndltd.ncl.edu.tw/handle/22dvf5 |