How to use Parseval' identity( Plancherel?
Let’s learn how to use Parseval' identity( Plancherel. The most accurate or helpful solution is served by Mathematics.
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(May be this is very basic question for MO) Let $f\in L^{2} (\mathbb R)$ with $\lim_{t\to \pm \infty} f(t)=0.$ Put $$F_{n} (x)= \frac{1}{2\pi} \int_{-n}^{n}e^{itx} f(t) dt \ (n=1,2,...)$$ Fix $\alpha \in (0, \infty)$ and we define $H_{n}(x)$ as follows: $$\frac{1}{2\pi}\int_{-n}^{n} e^{itx} (f(t+\alpha) -f(t-\alpha))dt = (e^{-i\alpha x}- e^{i\alpha x})F_{n}(x) + H_{n}(x)$$ My Question: Can we expect to prove: $H_{n}(x) \to 0$ as $n\to \infty$ in $L^{2}(\mathbb R)$ ? I guess some where we need...
Answer:
As proposed in (http://math.stackexchange.com/questions/685680/how-to-use-parseval-s-plancherel-s-identity...
Divyang Bhimani at Mathematics Mark as irrelevant Undo
Other solutions
Hi guys my father used my identity( he's not in my life) some how and when i try to apply for stuff, i cant verify my identity because it ask questions of stuff that he took out in my name like loans and a car loan. We have the same name but im a III...
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you need to pull your credit reports from ALL of the 3 major companies..get a certified copy of your...
LP at Yahoo! Answers Mark as irrelevant Undo
Use an angle sum identity to verify the identity cos(2theta)=2cos^2(theta)-1
Answer:
Given the identity: cos(a+b) = cos(a)*cos(b) - sin(a)*sin(b), you have cos(2*t) = cos(t+t) = cos^2(t...
Leah at Yahoo! Answers Mark as irrelevant Undo
It is given: - a server used by a network you try to have access to; - your identity document with digital or technological features; - only a photograph can be taken of you, no privacy invasion. The goal is to create a secure way to check the identity...
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If biometric features(retinal, finger print etc) are to be skipped completely, there is still hope ...
Amar Prabhu at Quora Mark as irrelevant Undo
Use Euler's identity to prove the pythagorean identity, cos^2(x) +sin^2(x) =1 I have (cos(x))(cos(x)) = 1-sin^2(x) Can someone inform me as to the next step? Help would be appreciated.
Answer:
e^(ix) = cos(x) + i*sin(x). e^(-ix) = cos(-x) + i*sin(-x) = cos(x) - i*sin(x). Multiply the two together...
Thoreau at Yahoo! Answers Mark as irrelevant Undo
The Supreme Court on Monday rejected a favorite tool of prosecutors in immigration cases, ruling unanimously that a federal identity-theft law may not be used against many illegal workers who used false Social Security numbers to get jobs. The question...
Answer:
Yes,it is ridiculous. They may not "know" that the number belongs to an actual person but...
Steve L at Yahoo! Answers Mark as irrelevant Undo
They certainly prevent any kind of visibility of Anonymous' identity. But do they use the identity for things like People Rank, or to bump up the content in a follower's News Feed? How random is the propagation of the content. Also, do they take into...
Answer:
Speaking for myself, from personal observation, and not speaking for Quora: A Named user's People Rank...
Paul Stockley at Quora Mark as irrelevant Undo
Can anyone suggest Artists who use personal identity as their major theme in an artwork? Can anyone also suggest notable artists who use photoshop in their artworks? thanks
Answer:
Guy-Vincent Ricketti http://www.realneo.us/Reception-for-Guy-… Kim Noble http://www.guardian...
Rizz at Yahoo! Answers Mark as irrelevant Undo
At the start of last year I began faking my identity online and I've taken it too far to the point where I'm actually going out with one of my friends I met on it I'm 15, female bi. The fake identity I have is 18 and a male, which makes it hard. I call...
Answer:
First things first....creating a fake identity is illegal and you should have just avoided her online...
Yahoo! Answers Mark as irrelevant Undo
My husband is convinced that we need to get this. It costs $110 per person per year, and from what I gather, all they do is contact Experian, Transunion and Equifax and tell them that you suspect you might be at risk for identity theft. They provide...
Answer:
funny you mentioned Lifelock. This company is currently under fire with consumer complaints due to the...
Elsie at Yahoo! Answers Mark as irrelevant Undo
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