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Este modulo nos dará una descripción de los espacios de Hilbert mas comunes y de sus propiedades básicas.

Espacios de hilbert comunes

A continuación veremos los cuatro Espacios de Hilbert mas comunes con los que usted tendráque tratar para la discusión y manipulación de señales y sistemas:

n (escalares reales ) y n (escalares complejos), también llamado 2 0 n 1

x x 0 x 1 x n - 1 Es una lista de números (secuencia finita). El producto interno para nuestros dos espacios son las siguientes:

  • Producto interno n :
    x y y x i 0 n 1 x i y i
  • Producto interno n :
    x y y x i 0 n 1 x i y i

Modelo para: Señal de tiempo discreto en el intervalo 0 n 1 o Señal Periódica (con periodo n ) de tiempo discreto. x 0 x 1 x n - 1

f L 2 a b es una función de energía finita en a b

Inner product

f g t a b f t g t
Modelo para: Señal de tiempo continuo en el intervalo a b o Señal Periódica (con periodo T b a ) de tiempo continuo

x 2 es una secuencia infinita de números que son cuadrados sumables

Producto interno

x y i x i y i
Modelo para: Señal no-periódica de tiempo discreto

f L 2 es una una función de energía finita en todo .

Producto interno

f g t f t g t
Modelo para: Señal no-periódica de tiempo continuo

AnÁLisis de fourier asociado

Cada uno de estos cuatro espacios de Hilbert tiene un análisis de Fourier asociado con el.

  • L 2 a b →Series de Fourier
  • 2 0 n 1 →Transformada Discreta de Fourier
  • L 2 →Transformada de Fourier
  • 2 →Transformada Discreta de Fourier en Tiempo
Pero los cuatros están basados en el mismo principio (Espacio de Hilbert).
no todos los espacios normalizados son espacios de Hilbert
Por ejemplo: L 1 ( ) , 1 f t f t . trate como usted pueda, de encontrar el producto interno que induce esta norma, es decir...tal que: · · such that
f f t f t 2 2 1 f 2
De echo, para todo el espacio L p , L 2 es el único que es un espacio de Hilbert.

Los espacios de Hilbert son en gran medida los más agradables, si se usa o estudia la expansión de bases ortonormales entonces usted empezara a ver por que esto es cierto.

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
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Source:  OpenStax, Señales y sistemas. OpenStax CNX. Sep 28, 2006 Download for free at http://cnx.org/content/col10373/1.2
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