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Questions
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eigenvalues of A⊕B

feb 7 11 at 1:16 Harry Gindi 8,878●2●33●96

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eigenvalues of $I\otimes B\otimes C + A\otimes I \otimes C + A\otimes B \otimes I $

feb 11 11 at 15:42 Greg Kuperberg 36.3k●2●116●179

 
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Sum of two unitary matrix is equal to every matrix? [closed]

aug 23 10 at 20:11 Pace Nielsen 1,970●7●18

 
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EXT for abelian group [closed]

dec 13 10 at 5:29 Mohsen 179●6

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