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Post Closed as "Not suitable for this site" by Franz Lemmermeyer, user1688, Wolfgang, Daniel Moskovich, Ryan Budney
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Emma
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Hi I am trying to calculate $E(\phi(X(1))$ with $X(t)$ satisfies the following

$$d(X(t))=\sigma(X(t))dW(t)$$

$$X(0)=x_0$$

where $\phi$ and $\sigma$ are arbitrary functions and $W(t)$ is Brownian motion. I think I should apply Feynman–Kac formula but not sure about how to deal with terminal conditions. Is the following right?

$$U(x,t)=U_t+1/2* \sigma^2 U_{xx}=0$$$$U_t+1/2\;\sigma^2 U_{xx}=0$$

$$U(x,1)=\phi(x_1) $$$$U(x,1)=\phi(x) $$

here $x_1$ is the value of X at time 1. But how do we know about this? We only know $x_0$. Or isIs the terminal condition supposed to be a function? ISay, if $\phi(x)=log(x)$ then $U(x,1)=log(x)$. I am confused...

Hi I am trying to calculate $E(\phi(X(1))$ with $X(t)$ satisfies the following

$$d(X(t))=\sigma(X(t))dW(t)$$

$$X(0)=x_0$$

where $\phi$ and $\sigma$ are arbitrary functions and $W(t)$ is Brownian motion. I think I should apply Feynman–Kac formula but not sure about how to deal with terminal conditions. Is the following right?

$$U(x,t)=U_t+1/2* \sigma^2 U_{xx}=0$$

$$U(x,1)=\phi(x_1) $$

here $x_1$ is the value of X at time 1. But how do we know about this? We only know $x_0$. Or is the terminal condition supposed to be a function? I am confused...

Hi I am trying to calculate $E(\phi(X(1))$ with $X(t)$ satisfies the following

$$d(X(t))=\sigma(X(t))dW(t)$$

$$X(0)=x_0$$

where $\phi$ and $\sigma$ are arbitrary functions and $W(t)$ is Brownian motion. I think I should apply Feynman–Kac formula but not sure about how to deal with terminal conditions. Is the following right?

$$U_t+1/2\;\sigma^2 U_{xx}=0$$

$$U(x,1)=\phi(x) $$

Is the terminal condition supposed to be a function? Say, if $\phi(x)=log(x)$ then $U(x,1)=log(x)$. I am confused...

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Emma
  • 143
  • 4

Hi I am trying to calculate E(phi(X(1))$E(\phi(X(1))$ with X(t)$X(t)$ satisfies the following

$$d(X(t))=\sigma(X(t))dW(t)$$

$$X(0)=x_0$$

where phi$\phi$ and sigma$\sigma$ are arbitrary functions and W(t)$W(t)$ is Brownian motion. I think I should apply Feynman–Kac formula but not sure about how to deal with terminal conditions. Is the following right?

$$U(x,t)=U_t+1/2* \sigma^2 U_{xx}=0$$

$$U(x,1)=\phi(x_1) $$

here x_1$x_1$ is the value of X at time 1. But how do we know about this? We only know x_0$x_0$. Or is the terminal condition supposed to be a function? I am confused...

Hi I am trying to calculate E(phi(X(1)) with X(t) satisfies the following

$$d(X(t))=\sigma(X(t))dW(t)$$

$$X(0)=x_0$$

where phi and sigma are arbitrary functions and W(t) is Brownian motion. I think I should apply Feynman–Kac formula but not sure about how to deal with terminal conditions. Is the following right?

$$U(x,t)=U_t+1/2* \sigma^2 U_{xx}=0$$

$$U(x,1)=\phi(x_1) $$

here x_1 is the value of X at time 1. But how do we know about this? We only know x_0...

Hi I am trying to calculate $E(\phi(X(1))$ with $X(t)$ satisfies the following

$$d(X(t))=\sigma(X(t))dW(t)$$

$$X(0)=x_0$$

where $\phi$ and $\sigma$ are arbitrary functions and $W(t)$ is Brownian motion. I think I should apply Feynman–Kac formula but not sure about how to deal with terminal conditions. Is the following right?

$$U(x,t)=U_t+1/2* \sigma^2 U_{xx}=0$$

$$U(x,1)=\phi(x_1) $$

here $x_1$ is the value of X at time 1. But how do we know about this? We only know $x_0$. Or is the terminal condition supposed to be a function? I am confused...

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Emma
  • 143
  • 4

Hi I am trying to calculate E(phi(X(1)) with X(t) satisfies the following

d(X(t))=sigma(X(t))dW(t)$$d(X(t))=\sigma(X(t))dW(t)$$

X0)=x_0$$X(0)=x_0$$

where phi and sigma are arbitrary functions and W(t) is Brownian motion. I think I should apply Feynman–Kac formula but not sure about how to deal with terminal conditions. Is the following right?

U(x,t)=Ut+1/2 sigma^2 Uxx=0$$U(x,t)=U_t+1/2* \sigma^2 U_{xx}=0$$

U(x,1)=phi(x_1)$$U(x,1)=\phi(x_1) $$

here x_1 is the value of X when t=1at time 1. But how do we know about this value? We only know x_0...

Hi I am trying to calculate E(phi(X(1)) with X(t) satisfies the following

d(X(t))=sigma(X(t))dW(t)

X0)=x_0

where phi and sigma are arbitrary functions and W(t) is Brownian motion. I think I should apply Feynman–Kac formula but not sure about how to deal with terminal conditions. Is the following right?

U(x,t)=Ut+1/2 sigma^2 Uxx=0

U(x,1)=phi(x_1)

here x_1 is the value of X when t=1. But how do we know about this value? We only know x_0...

Hi I am trying to calculate E(phi(X(1)) with X(t) satisfies the following

$$d(X(t))=\sigma(X(t))dW(t)$$

$$X(0)=x_0$$

where phi and sigma are arbitrary functions and W(t) is Brownian motion. I think I should apply Feynman–Kac formula but not sure about how to deal with terminal conditions. Is the following right?

$$U(x,t)=U_t+1/2* \sigma^2 U_{xx}=0$$

$$U(x,1)=\phi(x_1) $$

here x_1 is the value of X at time 1. But how do we know about this? We only know x_0...

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Emma
  • 143
  • 4
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Source Link
Emma
  • 143
  • 4
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