A CLT for the third integrated moment of Brownian local time increments

نویسنده

  • Jay Rosen
چکیده

Let {Lt ; (x, t) ∈ R1 ×R1 +} denote the local time of Brownian motion. Our main result is to show that for each fixed t ∫ (L t − Lt )3 dx− 12h ∫ (L t − Lt )Lt dx h2 L =⇒ √ 192 (∫ (Lt ) 3 dx )1/2 η as h → 0, where η is a normal random variable with mean zero and variance one that is independent of Lt . This generalizes our previous result for the second moment. We also explain why our approach will not work for higher moments.

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تاریخ انتشار 2009