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Questions about the properties of vector spaces and linear transformations, including linear systems in general.
7
votes
1
answer
917
views
Association scheme on injective functions
This problem arises while studying the complexity of algorithms and I am quite unfamiliar with the subject.
Consider the set F of injective functions from {1..N} to {1..M}
we can define an associati …
3
votes
1
answer
821
views
Equivalence constant between factorization norm and trace norm
The factorization norm, sometimes also called $\gamma_2$ norm play an important role in (quantum) communication complexity and is defined for a $n\times n$ matrix $A$ by:
$\gamma_2(A) = \max || A \c …