10-327/Separation Axioms: Difference between revisions

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[[Image:T0SA.png|upright = 0.5]]
[[Image:T0SA.png|250px]]


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[[Image:T1SA.png|upright = 0.5]]
[[Image:T1SA.png|250px]]


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[[Image:T2SA.png|upright = 0.5]]
[[Image:T2SA.png|250px]]


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[[Image:T3SA.png|upright = 0.5]]
[[Image:T3SA.png|250px]]


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[[Image:T35SA.png|upright = 0.5]]
[[Image:T35SA.png|250px]]


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[[Image:T4SA.png|upright = 0.5]]
[[Image:T4SA.png|250px]]


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[[Image:T45SA.png|upright = 0.5]]
[[Image:T45SA.png|250px]]


Since I made a mistake with the pathes and these files will likely be deleted or moved, I'm including a link to the [http://christopherolah.wordpress.com/2010/08/14/separation-axiom-visualisations/ original source on my blog].

The separation axioms along with other properties form a network of implications:

[[Image:10-327-separation-axioms-graph.png|450px]]

It's interesting to note that paracompactness (every open cover has a subcover such that every point has a neighbourhood that intersects finitely many elements) will suffice in place of compactness.

Latest revision as of 15:57, 19 December 2010

T0:

File:T0SA.png

T1:

File:T1SA.png

T2:

File:T2SA.png

T3:

File:T3SA.png

T3.5:

File:T35SA.png

T4:

File:T4SA.png

T4.5:

File:T45SA.png


Since I made a mistake with the pathes and these files will likely be deleted or moved, I'm including a link to the original source on my blog.

The separation axioms along with other properties form a network of implications:

10-327-separation-axioms-graph.png

It's interesting to note that paracompactness (every open cover has a subcover such that every point has a neighbourhood that intersects finitely many elements) will suffice in place of compactness.