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Renormalization of Generalized KPZ equation

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arxiv 1604.08712 v1 pith:CP3XQSS4 submitted 2016-04-29 math-ph math.MP

classification math-phmath.MP
keywords epsilonequationgeneralizedrenormalizationadditioncontextcountercutoff
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abstract

We use Renormalization Group to prove local well posedness for a generalized KPZ equation introduced by H. Spohn in the context of stochastic hydrodynamics. The equation requires the addition of counter terms diverging with a cutoff $\epsilon$ as $\epsilon^{-1}$ and $\log\epsilon^{-1}$.

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