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Este modulo discute los diferentes tipos de base, lo que nos conduce a la definición de base ortonormal. Son dados algunos ejemplos de la base ortonormal y sus usos también son discutidos.

Base normada

Base Normada
una base b i donde cada b i tiene una norma unitaria
i i b i 1
El concepto de bases se aplica a todos los espacios vectoriales . El concepto de base normada se aplica solo a espacios normados .
También usted puede normalizar una base: solo multiplique cada vector de la base por una constante, tal que 1 b i

Dada la siguiente base: b 0 b 1 1 1 1 -1 Normalizado con la norma 2 : b ~ 0 1 2 1 1 b ~ 1 1 2 1 -1 Normalizado con la norma 1 : b ~ 0 1 2 1 1 b ~ 1 1 2 1 -1

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Base ortogonal

Base Ortogonal
una base b i en donde los elementos son mutuamente ortogonales i i j b i b j 0
El concepto de base ortogonal se aplica solo a los Espacios de Hilbert .

Base canónica para 2 , también referida como 2 0 1 : b 0 1 0 b 1 0 1 b 0 b 1 i 1 0 b 0 i b 1 i 1 0 0 1 0

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Ahora tenemos la siguiente base y relación: 1 1 1 -1 h 0 h 1 h 0 h 1 1 1 1 -1 0

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Base ortonormal

Colocando las dos secciones (definiciones) anteriores juntas, llegamos al tipo de base más importante yútil:

Base Ortonormal
Una base que es normalizada y ortogonal i i b i 1 i i j b i b j
podemos acortar los dos argumentos en uno solo: b i b j δ i j donde δ i j 1 i j 0 i j Donde δ i j re refiere a la función delta Kronecker que también es escrita como δ i j .

Ejemplo de base ortonormal #1

b 0 b 2 1 0 0 1

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Ejemplo de base ortonormal #2

b 0 b 2 1 1 1 -1

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Ejemplo de base ortonormal #3

b 0 b 2 1 2 1 1 1 2 1 -1

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La belleza de las bases ortonormales

Trabajar con las bases Ortonormales es sencillo.Si b i es una base ortonormal, podemos escribir para cualquier x

x i α i b i
Es fácil encontrar los α i :
x b i k α k b k b i k α k b k b i
En donde en la ecuación anterior podemos usar el conocimiento de la función delta para reducir la ecuación: b k b i δ i k 1 i k 0 i k
x b i α i
Por lo tanto podemos concluir con la siguiente ecuación importante para x :
x i x b i b i
Los α i 's son fáciles de calcular (sin interacción entres los b i 's)

Dada la siguiente base: b 0 b 1 1 2 1 1 1 2 1 -1 representa x 3 2

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Serie de fourier levemente modificada

Dada la base n 1 T ω 0 n t en L 2 0 T donde T 2 ω 0 . f t n f ω 0 n t ω 0 n t 1 T Donde podemos calcular el producto interior de arriba en L 2 como f ω 0 n t 1 T t T 0 f t ω 0 n t 1 T t T 0 f t ω 0 n t

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7.7.3.2 expansiÓN de una base ortonormal en un espacio hilbert

Sea b i una base ortonormal para un espacio de Hilbert H . Entonces, para cualquier x H podemos escribir

x i α i b i
donde α i x b i .
  • “Análisis”: descomponer x en términos de b i
    α i x b i
  • "Síntesis": construir x de una combinación de las b i
    x i α i b i

Questions & Answers

A golfer on a fairway is 70 m away from the green, which sits below the level of the fairway by 20 m. If the golfer hits the ball at an angle of 40° with an initial speed of 20 m/s, how close to the green does she come?
Aislinn Reply
cm
tijani
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John Reply
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Siyaka Reply
A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance
Jude Reply
Can you compute that for me. Ty
Jude
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David Reply
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David
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emma Reply
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Youesf Reply
what is inorganic
emma
Chemistry is a branch of science that deals with the study of matter,it composition,it structure and the changes it undergoes
Adjei
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Adjanou
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Pedro
A ball is thrown straight up.it passes a 2.0m high window 7.50 m off the ground on it path up and takes 1.30 s to go past the window.what was the ball initial velocity
Krampah Reply
2. A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (0.20) at constant velocity by a force directed 25° above the horizontal. Calculate (a) the work of the applied force, (b) the work of friction, and (c) the total work.
Sahid Reply
you have been hired as an espert witness in a court case involving an automobile accident. the accident involved car A of mass 1500kg which crashed into stationary car B of mass 1100kg. the driver of car A applied his brakes 15 m before he skidded and crashed into car B. after the collision, car A s
Samuel Reply
can someone explain to me, an ignorant high school student, why the trend of the graph doesn't follow the fact that the higher frequency a sound wave is, the more power it is, hence, making me think the phons output would follow this general trend?
Joseph Reply
Nevermind i just realied that the graph is the phons output for a person with normal hearing and not just the phons output of the sound waves power, I should read the entire thing next time
Joseph
Follow up question, does anyone know where I can find a graph that accuretly depicts the actual relative "power" output of sound over its frequency instead of just humans hearing
Joseph
"Generation of electrical energy from sound energy | IEEE Conference Publication | IEEE Xplore" ***ieeexplore.ieee.org/document/7150687?reload=true
Ryan
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Maurice Reply
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answer
Magreth
progressive wave
Magreth
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Mujahid
A string is 3.00 m long with a mass of 5.00 g. The string is held taut with a tension of 500.00 N applied to the string. A pulse is sent down the string. How long does it take the pulse to travel the 3.00 m of the string?
yasuo 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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