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In this note we extend the results of the model of galaxy biasing recentlyproposed in (http://arxiv.org/abs/1212.0868v2). In that paper the authors hadoutlined a very precise mathematical framework to deal with the theory ofgalaxy biasing. In this work we extend that combinatorial technology torenormalize tracer n-point functions in their model of univariate biasing. Wefurther prove that 4 and higher point cumulants of the Bardeen potential don'thave an O(f_{NL}) term. Then we use this observation to extract all theO(f_{NL}) terms in the n-point correlation of tracers in their model ofbivariate biasing.

N-point correlations of dark matter tracers : Renormalization with univariate biasing and its O(f_{NL}) terms with bivariate biasing