28

Questions

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2

votes

1

answer

349

views

special extremally disconnected spaces with only finite isolated points

gn.general-topology set-theory measure-theory ultrafilters

nov 25 at 1:34 Goldstern 5,250●1●12●27

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5

votes

1

answer

250

views

Arbitrary small positive lower semi continuous functions

real-analysis gn.general-topology set-theory

oct 8 at 2:56 Joseph Van Name 1,799●4●11

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4

votes

0

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208

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Kaplansky’s theorem and Axiom of choice

axiom-of-choice projective-module modules ra.rings-and-algebras

sep 22 at 7:13 AliReza Olfati 1,140●1●7

1

vote

0

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219

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Existence of algebraic closure and Axiom of choice [closed]

axiom-of-choice set-theory fields ac.commutative-algebra ra.rings-and-algebras

sep 18 at 16:00 AliReza Olfati 1,140●1●7

2

votes

0

answers

215

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separability of commutative rings

commutative-rings ac.commutative-algebra ra.rings-and-algebras

sep 15 at 14:33 Charles Staats 4,059●1●19●45

1

vote

1

answer

183

views

The set of Upper semi-continuous functions as a ring.

real-analysis fa.functional-analysis gn.general-topology ac.commutative-algebra commutative-rings

sep 2 at 17:41 Will Sawin 18.5k●1●24●48

5

votes

3

answers

877

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functional subrings

ac.commutative-algebra commutative-rings gn.general-topology fa.functional-analysis real-analysis

oct 19 at 7:48 INI 26●1

1

1

vote

0

answers

201

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Sums of Strongly z-ideals

open-problem gn.general-topology ac.commutative-algebra commutative-rings

sep 16 at 9:15 Fernando Muro 5,139●1●9●15

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7

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4

answers

533

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Quotient rings of $C(X)$

ac.commutative-algebra commutative-rings gn.general-topology at.algebraic-topology

nov 28 at 20:06 Ali 216●8

5

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0

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540

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Maximal ideals of the rings of Baire- One Functions

gn.general-topology ac.commutative-algebra commutative-rings banach-algebras real-analysis

mar 3 at 0:22 MathOverflow♦ 1●2●3