Talk:Catastrophe theory

message: Needs more clear mathematical explanations; and a separate section on philosophical implications.  Right now the philosophy is mixed up with the mathematics, making it quite confusing, and less useful to mathematicians.  +sj + 02:18, 25 November 2005 (UTC)
thread_title:  Mathematics needs to be clearer 

message: Neither this article nor  this one distinguish chaos from catastrophe theory.  Whilst I'm not an expert in either, I feel that at a bare minimum this article, which is concerned with the less known of the two, ought to explain why the two are different.--Leon (talk) 15:39, 16 September 2009 (UTC)
replies: text: Seems like a good idea to me. Perhaps the best way to do it in this article would be to say that both catastrophe theory and chaos theory deal with physical systems where small changes in the parameters cause large changes in their behavior, but that catastrophe theory is limited to systems whose behavior is determined by a potential function in one of the forms given here. Robert O'Rourke (talk) 01:28, 26 March 2011 (UTC)
replies: text: The crucial distinction between chaos theory and catastrophe theory is that chaos theory deals with changes in initial conditions, while bifurcation theory, which includes catastrophe theory, deals with changes in parameters. The logistic map is used in both chaos theory and bifurcation theory. Robert O'Rourke (talk) 20:34, 29 June 2014 (UTC)
thread_title:  Needs some qualification 

message: The svg images used in this page are pretty messed up; the legends have a lot of overlapping text.  I'm viewing using: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3
--75.90.223.53 (talk) 15:22, 8 October 2009 (UTC)
thread_title:  Images 

message: What's the name of the theorem which prove "If the potential function depends on two or fewer active variables, and four (resp. five) or fewer active parameters, then there are only seven (resp. eleven) generic structures for these bifurcation geometries"? It seems to be an important theorem but without seeing it we can't say it's cited. --虞海 (Yú Hǎi) (talk) 15:03, 3 November 2009 (UTC)
replies: text: Is that "Thom's classification theorem"? --虞海 (Yú Hǎi) (talk) 15:10, 3 November 2009 (UTC)
replies: text: Thats what Poston and Stewart call it.--Salix (talk): 19:23, 3 November 2009 (UTC)
thread_title: Thom's theorem

message: Without understanding phase space and nonlinear system it is impossible to understand. Theory of Catastrophy is not a branch of bifurcation study. hopf bifurcation is also just one type of phase space shifting. therefore this article needs to be revised, may be rewrite. Theory of Catastrophy is totally different branch of nonlinear dynamics. germs of catastrophies and phase space shiftings are related to interactions between parameters and variables.  —Preceding unsigned comment added by Galtbolor (talk • contribs) 04:23, 17 February 2010 (UTC)
thread_title:  Theory of Catastrophy is totally different  area of study 

message: Tried to do a quick lookup on the super volcano explosion at Lake Toba, and kept getting redirected to this instead.
Way to go Wiki editors.  — Preceding unsigned comment added by 71.171.89.28 (talk) 07:52, 17 July 2014 (UTC)
replies: text: How are you looking? A search for Lake Toba or Lake Toba volcano shows up Toba catastrophe theory among the first results. Diego (talk) 09:15, 17 July 2014 (UTC)
thread_title:  Congrats, you just stepped all over historical geographic catastrophic searching 

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thread_title:  External links modified