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kupier  
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  More options Dec 2 2008, 12:25 am
Newsgroups: sci.math
From: kupier <qaz...@yahoo.com>
Date: Mon, 01 Dec 2008 14:25:31 EST
Local: Tues, Dec 2 2008 12:25 am
Subject: t.v.s
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Hi
let g be a topological vector space .
is it true that pi_2(g)=0.
why ?

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G. A. Edgar  
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  More options Dec 2 2008, 2:01 am
Newsgroups: sci.math
From: "G. A. Edgar" <ed...@math.ohio-state.edu.invalid>
Date: Mon, 01 Dec 2008 16:01:58 -0500
Local: Tues, Dec 2 2008 2:01 am
Subject: Re: t.v.s
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In article
<15674010.1228159561342.JavaMail.jaka...@nitrogen.mathforum.org>,

kupier <qaz...@yahoo.com> wrote:
> Hi
> let g be a topological vector space .
> is it true that pi_2(g)=0.
> why ?

becasue it's contractible?

--
G. A. Edgar                              http://www.math.ohio-state.edu/~edgar/


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kupier  
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  More options Dec 2 2008, 1:00 pm
Newsgroups: sci.math
From: kupier <qaz...@yahoo.com>
Date: Tue, 02 Dec 2008 03:00:55 EST
Local: Tues, Dec 2 2008 1:00 pm
Subject: Re: t.v.s
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is this a theorem ?
why?
why a t.v.s is contractible?
what is the proof?
 i think it is wrong because i have seen in an article that pi_1(g)#0.

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David C. Ullrich  
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  More options Dec 2 2008, 5:21 pm
Newsgroups: sci.math
From: David C. Ullrich <dullr...@sprynet.com>
Date: Tue, 02 Dec 2008 06:21:13 -0600
Local: Tues, Dec 2 2008 5:21 pm
Subject: Re: t.v.s
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On Tue, 02 Dec 2008 03:00:55 EST, kupier <qaz...@yahoo.com> wrote:
>is this a theorem ?
>why?
>why a t.v.s is contractible?
>what is the proof?

Erm, you might try T_s(x) = sx for 0 <= s <= 1.

> i think it is wrong because i have seen in an article that pi_1(g)#0.

Really?
David C. Ullrich

"Understanding Godel isn't about following his formal proof.
That would make a mockery of everything Godel was up to."
(John Jones, "My talk about Godel to the post-grads."
in sci.logic.)


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kupier  
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  More options Dec 2 2008, 5:46 pm
Newsgroups: sci.math
From: kupier <qaz...@yahoo.com>
Date: Tue, 02 Dec 2008 07:46:26 EST
Local: Tues, Dec 2 2008 5:46 pm
Subject: Re: t.v.s
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"you might try T_s(x) = sx for 0 <= s <= 1."

sorry I did't get it.
could you explain in more details.
Thanks.


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David C. Ullrich  
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  More options Dec 2 2008, 7:49 pm
Newsgroups: sci.math
From: David C. Ullrich <dullr...@sprynet.com>
Date: Tue, 02 Dec 2008 08:49:22 -0600
Local: Tues, Dec 2 2008 7:49 pm
Subject: Re: t.v.s
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On Tue, 02 Dec 2008 07:46:26 EST, kupier <qaz...@yahoo.com> wrote:
>"you might try T_s(x) = sx for 0 <= s <= 1."

>sorry I did't get it.
>could you explain in more details.

No. Do you know the definition of the relevant notion of
"contractible"?

>Thanks.

David C. Ullrich

"Understanding Godel isn't about following his formal proof.
That would make a mockery of everything Godel was up to."
(John Jones, "My talk about Godel to the post-grads."
in sci.logic.)


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kupier  
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  More options Dec 2 2008, 8:22 pm
Newsgroups: sci.math
From: kupier <qaz...@yahoo.com>
Date: Tue, 02 Dec 2008 10:22:45 EST
Local: Tues, Dec 2 2008 8:22 pm
Subject: Re: t.v.s
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Hi
sorry....I got it.
Thanks.
Best Regards.

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