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For each such $R$ it is proved that there is a real number $\\gamma>1$, such that $\\mu^{d+i}_R\\ge\\gamma\\mu^{d+i-1}_R$ holds for all $i\\ge 0$, except for $i=2$ in two explicitly described cases, where $\\mu^{d+2}_R=\\mu^{d+1}_R=2$. 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