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# Questions

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### Centralizers in C*-algebra

feb 5 12 at 5:46 Martin Argerami 1,242510

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496
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### spectra of sums in (Banach) algebras

jan 4 12 at 6:38 Yemon Choi 8,43711944

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336
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### positive hermitian elements in $M_n(\mathbb{C})$

oct 30 11 at 10:40 Zack Wolske 1,11429

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196
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### algebraic closure of commuting pairs of matrices

mar 7 11 at 21:05 Guntram 2,3561718

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113
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### Possible restrictions on generators of $M_n(\mathbb{C})$

feb 6 at 18:29 spelas 1495

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