From: Joubert on

y'=(y^2 - 1)(y^2 + x^2)
y(0)=y*

Prove that there is a unique maximal solution.
Prove that if y* > 1 there is not a globally defined solution (as
opposed to when |y*| < 1). How can I prove it?

Thanks.

From: Rob Johnson on
In article <4c25ce14$0$12125$4fafbaef(a)reader4.news.tin.it>,
Joubert <waterhemlock8985(a)gmail.com> wrote:
>y'=(y^2 - 1)(y^2 + x^2)
>y(0)=y*
>
>Prove that there is a unique maximal solution.
>Prove that if y* > 1 there is not a globally defined solution (as
>opposed to when |y*| < 1). How can I prove it?

You have guile but no patience. You've gotten more than enough help
in another thread.

<http://groups.google.com/group/sci.math/browse_frm/thread/73915aa1aa45d121>

Rob Johnson <rob(a)trash.whim.org>
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From: Joubert on

> You have guile but no patience. You've gotten more than enough help
> in another thread.

Yup sorry. Just saw it.