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Results tagged with reference-request
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user 16739
This tag is used if a reference is needed in a paper or textbook on a specific result.
2
votes
1
answer
2k
views
Effects of shortening and puncturing on codes
Given a binary block code $C=[n,k]$ of codeword length $n$, and dimension $k$.
Suppose I've determined these properties for it : $d_{min}$ (minimum distance),
$N_{dmin}$ (number of codewords at $d_{mi …
- 451
1
vote
1
answer
247
views
characterize certain type of matrices
I am trying to characterize matrices with a certain property :
Define $U$ as an $n \times n$ matrix (over C or R; you can also assume
that it is unitary or orthogonal if it helps). Now take $n$
unknow …
- 451
4
votes
0
answers
186
views
Reference request for generalized root systems
Where can I find information on root systems where the inner product
is other than the standard (all positive) signature?
- 451