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Results tagged with matrices
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user 490128
Questions where the notion matrix has an important or crucial role (for the latter, note the tag matrix-theory for potential use). Matrices appear in various parts of mathematics, and this tag is typically combined with other tags to make the general subject clear, such as an appropriate top-level tag ra.rings-and-algebras, co.combinatorics, etc. and other tags that might be applicable. There are also several more specialized tags concerning matrices.
3
votes
Accepted
On the half-skew-centrosymmetric Hadamard matrices
This gives half-skew-centrosymmetric Hadamard matrices of twice the size of a Hadamard matrix. … (It also works for complex Hadamard matrices or even Hadamard matrices over *-rings)
Another construction (edit): suppose we apply the Paley construction II to a finite field with $q=4k+1$ elements giving …
- 1,245
5
votes
About the Hadamard conjecture
For complex Hadamard matrices, the dimension can be a non-multiple of 4, it can be any integer. … If you're interested in (complex) Hadamard matrices or the Paley construction, take a look at my master thesis: Hadamard matrices over *-rings …
- 1,245