Talk:Cauchy–Kovalevskaya theorem

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{{old move|date=17 September 2023|from=Cauchy–Kowalevski theorem|destination=Cauchy–Kovalevskaya theorem|result=moved|link=Special:Permalink/1175857697#Requested move 17 September 2023}}

Explain End(V)

The statement of the theorem says that A_i is in End(V). That notation should be explained. LachlanA (talk) 01:31, 1 October 2009 (UTC)

Done! The discussion of abstract vector spaces and endomorphisms is, in my opinion, pointless. I've replaced this by a statement in R^n or C^n. I've kept the discussion of abstract vector spaces and endomorphisms, but I've moved it later. The original page claims that theorem was valid in any vector space. I think it's only for real or complex vector spaces. Can anyone verify this? 129.215.104.124 (talk) 13:12, 2 March 2010 (UTC)

Relation with Cauchy problem

I'm not familiar with this topic, how does the Cauchy-Kowalevski relate to the Cauchy–Lipschitz? Don't they both address the existance of unique solution for the Cauchy problem? --Marco4math (talk) 00:16, 26 February 2010 (UTC)

wrong direction?

either I am completely confused or f goes in the wrong direction: $f: W \to V$ should be there instead of $f: V \to W$

--Diogenes2000 (talk) 23:04, 23 January 2011 (UTC)

Link not correct?

The link to the reference Kowalevski, Sophie seems to be wrong. — Preceding unsigned comment added by 192.108.69.177 (talk) 14:03, 26 July 2011 (UTC)

Requested move 17 September 2023

:The following is a closed discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review after discussing it on the closer's talk page. No further edits should be made to this discussion.

The result of the move request was: moved. (closed by non-admin page mover) EggRoll97 ^(talk) 03:45, 25 September 2023 (UTC)

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:Cauchy–Kowalevski theorem → {{no redirect|Cauchy–Kovalevskaya theorem}} – Appears to be more common according to Google and Google Scholar, and is in line with the article on Sofya Kovalevskaya. 1234qwer 1234qwer 4 22:12, 17 September 2023 (UTC)

The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

Article is unreadable

The article is extremely unclear, because it is written as if the reader is already familiar with its subject.

For instance: In the section First order Cauchy–Kovalevskaya theorem, nothing is ever stated explicitly about what the domain or codomain of the unknown function f is.

In the section Higher-order Cauchy–Kovalevskaya theorem, nothing is ever stated about what the domain or codomain of the unknown function h is.

In the section Cauchy–Kovalevskaya–Kashiwara theorem, this section is far too short to be of use to anyone who is not already familiar with this theorem.

To make matters worse, the Example in this section uses the notations {x₁ = ... = x_n} and ℂ{x₁, ..., x_n} — with no explanation — that most Ph.D.'s in mathematics never encounter.

The article does not even say ''' what kind of mathematical object(s) this notation denotes.

I hope someone familiar with this topic will improve this writing so that it becomes comprehensible to more than the people who already know about it.