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Iosif Pinelis
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Of course not. E.g., let

  • $(x_1,x_2,x_3,,x_4,\dots)=(3,1,1,1\dots)$;
  • $(y_1,y_2,y_3,y_4,\dots)=(2,2,2,2\dots)$;
  • $(c_1,c_2,c_3,c_4,\dots)=(1,1,1,1,\dots)$;
  • $(d_1,d_2,d_3,d_4,\dots)=(3,1,1,1,\dots)$.

Then $\max_i\dfrac{x_i}{c_i}=3>2=\max_i\dfrac{y_i}{c_i}$ but $\max_i\dfrac{x_i}{d_i}=1<2=\max_i\dfrac{y_i}{d_i}$.

Iosif Pinelis
  • 127.9k
  • 8
  • 107
  • 229