Talk:Seifert–van Kampen theorem

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Time to state at least sufficient conditions for the theorem to hold. Charles Matthews 14:00, 23 Mar 2005 (UTC)

[edit] Sample Applications

It would be nice with a couple of examples of applications. YohanN7 (talk) 18:48, 10 December 2007 (UTC)

I added a simple application although its formatted very badly, also some pictures of the commutative diagrams would be nice --LkNsngth (talk) 03:54, 24 March 2008 (UTC)

eh, examples are nice, even better if they are somewhat interesting. that computation of π₁(S^2) is a trivial one; both A and B are disks. maybe we can replace the e.g. Mct mht (talk) 04:08, 24 March 2008 (UTC)

I added another calculation, the n fold torus, but its formatted quite badly so it would be great of someone better at this could make it more concise and more aesthetically pleasing. I also might have made a few errors so it would be great if someone could help proof read it. LkNsngth (talk) 04:43, 6 April 2008 (UTC)

I tried to make it more aesthetically pleasing and got completely carried away. I want to say that your argument was correct. Orthografer (talk) 07:02, 6 April 2008 (UTC)

I think you did a good jobLkNsngth (talk) 17:12, 6 April 2008 (UTC)

[edit] History

It would be nice if this article had a history section, at least to explain what was done by Seifert and what by van Kampen. Algebraist 23:46, 9 January 2009 (UTC)