Talk:Spectral sequence

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Mathematics rating: A-BB+ Class High Priority  Field: Algebra

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[edit] New To Advanced Math

Hi; I'm trying desperately to understand many of these advanced principals of mathematics, such as spectral sequence, but no matter how many times I review the material, it doesn't sink in. Could someone please provide examples, problems to solve (with their solutions) and/or ways to visualize this? beno 26 Jan 2006

I removed the attention template. The material is correct, and needs no more attention than a typical page. The fact that the subject is one that can be written about ad infinitum is not grounds for needing special attention. Most mathematics pages are like that.--192.35.35.36 14:18, 7 Feb 2005 (UTC)

[edit] filtrations section

The notation in the filtrations section is not clear (different objects named "A" in the first short exact sequence, for example). I will gladly correct if I can figure out the author's intention, although I'm just learning spectral sequences well for the first time. Kinser 01:48, 23 Jun 2005 (UTC)

[edit] Accessibility

As far as allowing anyone not already professional in these matters to understand what is happening, some of the recent changes have had a negative effect. For example going straight to abelian categories doesn't help, and saying we are in a category of modules would be good enough. Removing the spreadsheet metaphor also takes away a prop to understanding. Charles Matthews 12:13, 4 March 2006 (UTC)

Also I see the example is gone. Charles Matthews 12:16, 4 March 2006 (UTC)

[edit] Knights move analogy

I think it is a little bit strange to explain what different values of r mean in so much detail. Whoever wants to understand about spectral sequences probably knows what slope means. T3kcit 08:24, 14 April 2007 (UTC)

Well, I'm against 'improving' the page, and other mathematical pages, by removing bits that are easy to understand, in favour of abstraction that only experts understand. That has already happened several times to this page (As I point out above). The aim is not to have a 'clean' treatment, but to give access to the area. Why assume anything about whoever wants to understand spectral sequences? We aim at the 'general reader'. Charles Matthews 08:48, 14 April 2007 (UTC)

[edit] Rating

I would propose to rate this article in the category Algebra instead of Geometry/Topology, because spectral sequences are really a purely algebraic entity - with lots of geometric/topologic applications. Do you agree? Jakob.scholbach 17:04, 18 April 2007 (UTC)

Fine by me. --Salix alba (talk) 18:30, 18 April 2007 (UTC)
OK, done Jakob.scholbach 20:43, 18 April 2007 (UTC)

[edit] Five term exact sequence

Could somebody write something on the Five term exact sequence of low degrees? Jakob.scholbach (talk) 14:38, 20 December 2007 (UTC)