On an inequivalence criterion for cocyclic Hadamard matrices
✍ Scribed by José Andrés Armario
- Book ID
- 107597921
- Publisher
- Springer-Verlag
- Year
- 2010
- Tongue
- English
- Weight
- 316 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1936-2447
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📜 SIMILAR VOLUMES
## Abstract Given a basis ${\cal B} = \{f\_1,\ldots, f\_k\}$ for 2‐cocycles $f:G \times G \rightarrow \{\pm 1\}$ over a group __G__ of order $\vert G\vert=4t$, we describe a nonlinear system of 4__t__‐1 equations and __k__ indeterminates $x\_i$ over ${\cal Z}\_2, 1\leq i \leq k$, whose solutions de
We provide an algorithmic characterization of H-matrices. When A is an H-matrix, this algorithm determines a positive diagonal matrix D such that AD is strictly row diagonally dominant. In effect, D is produced iteratively by quantifying and \* Work supported by a Natural Sciences and Engineering Re