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About statistics of DFT   Message List  
Reply | Forward Message #298 of 462 |
Re: [harmonic] a simple question

Hi,
I think this set is not open, because p=(1/2,1/4,1/6,...,1/2n,...) isn't an interior point for this set with product top.   

shuva gupta <shuvagupta@...> wrote:
I guess for box topology it is trivially an open set (because the way open sets are defined there ) Why is it true/not true  for product topology ?
Thanx for your help .


venku naidu <venku_uoh@...> wrote:
nice to meet you..
you are not mentiond that what topology you considered on R infinity. you have to mention that either box topology or product topology or any other.

shuva gupta <shuvagupta@...> wrote:

I have a simple qn it would be great if someone cared to answer this

 

why is  (0,1)x(0,1/2)x(0,1/3)x(0,1/4)x.........(0,1/n)x........ not(?) an open subset set of R infinity .

Regards,

Shuva

 


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Mon Oct 10, 2005 6:29 am

arefigamal
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Message #298 of 462 |
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Hi Is there a proof that the output across different tones of Discrete Fourier transform (DFT) is dependent? And Is there a proof that as these tones...
Hum, Chak H
chhum@...
Send Email
Sep 15, 2005
10:06 am

I have a simple qn it would be great if someone cared to answer this why is (0,1)x(0,1/2)x(0,1/3)x(0,1/4)x.........(0,1/n)x........ not(?) an open subset set...
shuva gupta
shuvagupta
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Oct 9, 2005
12:44 am

nice to meet you.. you are not mentiond that what topology you considered on R infinity. you have to mention that either box topology or product topology or...
venku naidu
venku_uoh
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Oct 9, 2005
2:34 pm

I guess for box topology it is trivially an open set (because the way open sets are defined there ) Why is it true/not true for product topology ? Thanx for...
shuva gupta
shuvagupta
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Oct 10, 2005
1:00 am

Hi, I think this set is not open, because p=(1/2,1/4,1/6,...,1/2n,...) isn't an interior point for this set with product top. shuva gupta...
ali akbar arefigamal
arefigamal
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Oct 10, 2005
6:29 am

hi, its not open in product topology becos the basis for product topology consists of products of open sets (U_1, U_2,...) where U_i=R except for finitely many...
Gowri Navada
gnavada
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Oct 10, 2005
1:16 pm

... Can you just mention the topology i.e openess with w.r.t box topology or product topology because it is clear from the way it has been written that it is...
Shravan Kumar
meet_shravan
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Dec 28, 2005
4:14 am
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