4x4 Symmetric Tridiagonal Sign Patterns which Require Algebraic Positivity
碩士 === 國立中興大學 === 應用數學系所 === 106 === A sign pattern (or sign pattern matrix) is a matrix whose entries come from the set ${-,0,+}$. For a real matrix $A$, $sgn(A)$ is the sign pattern of $A$ whose entries are the signs of the corresponding entries in $A$. If $mathcal{A}$ is a sign pattern, the sign...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | en_US |
| Published: |
2018
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/7d44yk |