Question: 25. Let (X,) be a Levy process. Show that the characteristic function of X, must be of the form Beis Xi = ev(s) SERd for

25. Let (X,) be a Levy process. Show that the characteristic

25. Let (X,) be a Levy process. Show that the characteristic function of X, must be of the form Beis Xi = ev(s) SERd for some complex-valued function v

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