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Absolute Continuity of the Invariant Measures for Some Stochastic PDEs

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Abstract

We consider a free system and an interacting systems having invariant measures μ and ν respectively. Under suitable assumptions we prove an explicit formula relating ν with μ and implying the absolute continuity of ν with respect to μ. We apply our result to a reaction-diffusion equation and to the Burgers equation.

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Da Prato, G., Debussche, A. Absolute Continuity of the Invariant Measures for Some Stochastic PDEs. Journal of Statistical Physics 115, 451–468 (2004). https://doi.org/10.1023/B:JOSS.0000019816.42914.19

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  • DOI: https://doi.org/10.1023/B:JOSS.0000019816.42914.19

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