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porton

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Name porton
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Am amateur General Topology researcher.
27

Questions
votes newest views recent
 
5
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4
answers
671
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An ultrafilter and a partition

oct 29 10 at 22:41 Mark Sapir 27.9k●2●57●120

1
5
votes
1
answer
756
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Orderings of ultrafilters

mar 1 11 at 20:32 Joel David Hamkins 76.8k●8●192●355

 
3
votes
4
answers
502
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Filter-closed vs. chain-closed

feb 26 10 at 19:33 porton 82●8

 
2
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2
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527
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Product of ultrafilters, is it an ultrafilter?

aug 19 11 at 20:22 Andreas Blass 33.8k●4●59●111

 
0
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3
answers
590
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Is the Rudin-Keisler order of ultrafilters linear?

feb 27 11 at 22:29 Joel David Hamkins 76.8k●8●192●355

 
0
votes
1
answer
274
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A property of a product of posets

jul 12 at 21:46 Andreas Blass 33.8k●4●59●111

 
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1
answer
72
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Two different products of filters

apr 4 at 20:48 Joel David Hamkins 76.8k●8●192●355

 
0
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2
answers
350
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Weak partitioning vs. strong partitioning

feb 26 10 at 19:31 porton 82●8

 
0
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1
answer
125
views

Connectedness of a union regading a proximity

jun 14 10 at 21:49 KP Hart 2,311●5●13

 
0
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2
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450
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Partition into connected sets by proximity

dec 14 10 at 17:22 MathOverflow♦ 1●2●3

1 2 3 next

 

9

Answers
votes newest views recent
3
What’s a mathematician to do?
0
What programming languages do mathematicians use?
0
Filter-closed vs. chain-closed
0
Weak partitioning vs. strong partitioning
-5
Individual mathematical objects whose study amounts to a (sub)discipline?
-5
Filters and intersection of two binary relations
-7
A Book You Would Like to Write
-8
Union of uniformly connected sets
-12
Examples of common false beliefs in mathematics.

 

33

Votes
30
3

 

20

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