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Questions
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What does the σ in σ-algebra stand for?

aug 30 11 at 7:00 Georges Elencwajg 24.3k●65●132

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What are your favorite finite non-commutative rings?

jun 8 10 at 2:14 Oliver 1,084●6●19

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Biography of Felix Hausdorff

dec 23 at 1:47 Alexandre Eremenko 10.6k●1●24●39

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Why should I believe the Singular Cardinal Hypothesis?

jul 2 11 at 2:45 Joel David Hamkins 74.8k●7●187●343

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Mathematical ideas named after places [closed]

may 12 11 at 18:33 Ben Webster♦ 20.7k●1●44●114

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Can an infinite commutative ring have a finite (but nonzero) number of non-nilpotent zero-divisors?

jul 25 10 at 5:31 Victor Protsak 7,751●1●30●44

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What is so “plactic” about the plactic monoid?

jan 22 12 at 4:09 Oliver 1,084●6●19

 
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Does the beth function have fixed points of arbitrarily large cofinality?

mar 6 10 at 18:14 Joel David Hamkins 74.8k●7●187●343

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Notation: Exponent of a group

jan 6 11 at 17:43 quid 12.9k●31●51

 
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When forcing with a poset, why do we order the poset in the order that we do?

mar 29 10 at 0:41 Uri Andrews 184●7

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