Dynkin formula and expectation












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I have a question about the use of Dynkin's formula. Suppose I have a stochastic process $X_t$, from an SDE that I cannot solve analytically. I want to find the expectation $mathbb{E}X_t$. By Dynkin with initial condition $X_0=x$,



$$mathbb{E}X_t=x+mathbb{E}^xint_0^t L(X_s)ds$$



,here $L$ is the generator of the diffusion, found from the SDE. How would one find an expression for the expectation of the integral?










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    1












    $begingroup$


    I have a question about the use of Dynkin's formula. Suppose I have a stochastic process $X_t$, from an SDE that I cannot solve analytically. I want to find the expectation $mathbb{E}X_t$. By Dynkin with initial condition $X_0=x$,



    $$mathbb{E}X_t=x+mathbb{E}^xint_0^t L(X_s)ds$$



    ,here $L$ is the generator of the diffusion, found from the SDE. How would one find an expression for the expectation of the integral?










    share|cite|improve this question











    $endgroup$















      1












      1








      1





      $begingroup$


      I have a question about the use of Dynkin's formula. Suppose I have a stochastic process $X_t$, from an SDE that I cannot solve analytically. I want to find the expectation $mathbb{E}X_t$. By Dynkin with initial condition $X_0=x$,



      $$mathbb{E}X_t=x+mathbb{E}^xint_0^t L(X_s)ds$$



      ,here $L$ is the generator of the diffusion, found from the SDE. How would one find an expression for the expectation of the integral?










      share|cite|improve this question











      $endgroup$




      I have a question about the use of Dynkin's formula. Suppose I have a stochastic process $X_t$, from an SDE that I cannot solve analytically. I want to find the expectation $mathbb{E}X_t$. By Dynkin with initial condition $X_0=x$,



      $$mathbb{E}X_t=x+mathbb{E}^xint_0^t L(X_s)ds$$



      ,here $L$ is the generator of the diffusion, found from the SDE. How would one find an expression for the expectation of the integral?







      probability-theory stochastic-processes stochastic-calculus stochastic-integrals sde






      share|cite|improve this question















      share|cite|improve this question













      share|cite|improve this question




      share|cite|improve this question








      edited Dec 16 '18 at 8:58









      Davide Giraudo

      127k16151264




      127k16151264










      asked Dec 16 '18 at 1:39









      thaumoctopusthaumoctopus

      9519




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