57

Questions
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Algebraicity of the completion of a field? Finiteness?

jan 29 10 at 21:57 S. Carnahan♦ 25.6k●41●90

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3
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What is the right definition of the Picard group of a commutative ring?

dec 29 at 0:04 Akhil Mathew 12k●2●28●89

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What is the “right” universal property of the completion of a metric space?

jan 17 10 at 5:55 Emerton 38.9k●4●120●198

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Is the ring of all cyclotomic integers a Bezout domain?

dec 29 10 at 10:43 Franz Lemmermeyer 17.2k●1●38●101

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Schur multipliers over non-algebraically closed ground fields?

jun 3 11 at 10:36 Pete L. Clark 39.6k●3●102●225

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When is the torsion subgroup of an abelian group a direct summand?

apr 4 11 at 12:02 Pete L. Clark 39.6k●3●102●225

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What are examples illustrating the usefulness of Krull (i.e., rank > 1) valuations?

feb 23 10 at 22:14 B A Sethuraman 91●3

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Elementary proof wanted: every local principal ideal ring is a quotient of a PID

jun 18 at 5:43 NN 234●3

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1k
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Seeking Noetherian normal domain with vanishing Picard group but not a UFD

may 4 at 3:15 David Anderson 1

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“Kummerian” fields?

dec 28 09 at 19:56 Lior Bary-Soroker 1,355●7●18

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