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ABIM
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LetFix $c>1$. Let $(X,d)$ be a separable compact metric space, does there necessarily exist a Borel probability measure $\nu$ on $(X,d)$ such that

  • $\frac{\nu(\mathrm{Ball}(x,cr))}{\nu(\mathrm{Ball}(x,r))}<\infty$ for every $x\in X$ and every $r>0$$\operatorname{sup}_{x \in X,r>0}\frac{\nu(\mathrm{Ball}(x,cr))}{\nu(\mathrm{Ball}(x,r))}<\infty$,
  • $\nu(\mathrm{Ball}(x,r))>0$ for every $x \in X$ and $r>0$.

Let $(X,d)$ be a separable compact metric space, does there necessarily exist a Borel probability measure $\nu$ on $(X,d)$ such that

  • $\frac{\nu(\mathrm{Ball}(x,cr))}{\nu(\mathrm{Ball}(x,r))}<\infty$ for every $x\in X$ and every $r>0$,
  • $\nu(\mathrm{Ball}(x,r))>0$ for every $x \in X$ and $r>0$.

Fix $c>1$. Let $(X,d)$ be a separable compact metric space, does there necessarily exist a Borel probability measure $\nu$ on $(X,d)$ such that

  • $\operatorname{sup}_{x \in X,r>0}\frac{\nu(\mathrm{Ball}(x,cr))}{\nu(\mathrm{Ball}(x,r))}<\infty$,
  • $\nu(\mathrm{Ball}(x,r))>0$ for every $x \in X$ and $r>0$.
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YCor
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Bounded ball measure on Compact Metric Spacecompact metric space

Let $(X,d)$ be a separable compact metric space, does there necessarily exist a Borel probability measure $\nu$ on $(X,d)$ such that

  • $\frac{\nu(Ball(x,cr))}{\nu(Ball(x,r))}<\infty$$\frac{\nu(\mathrm{Ball}(x,cr))}{\nu(\mathrm{Ball}(x,r))}<\infty$ for every $x\in X$ and every $r>0$,
  • $\nu(Ball(x,r))>0$$\nu(\mathrm{Ball}(x,r))>0$ for every $x \in X$ and $r>0$
  • $\nu$ is Borel.

Bounded ball measure on Compact Metric Space

Let $(X,d)$ be a separable compact metric space, does there necessarily exist a probability measure $\nu$ on $(X,d)$ such that

  • $\frac{\nu(Ball(x,cr))}{\nu(Ball(x,r))}<\infty$ for every $x\in X$ and every $r>0$,
  • $\nu(Ball(x,r))>0$ for every $x \in X$ and $r>0$
  • $\nu$ is Borel.

Bounded ball measure on compact metric space

Let $(X,d)$ be a separable compact metric space, does there necessarily exist a Borel probability measure $\nu$ on $(X,d)$ such that

  • $\frac{\nu(\mathrm{Ball}(x,cr))}{\nu(\mathrm{Ball}(x,r))}<\infty$ for every $x\in X$ and every $r>0$,
  • $\nu(\mathrm{Ball}(x,r))>0$ for every $x \in X$ and $r>0$.
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ABIM
  • 5.4k
  • 3
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  • 41

Bounded ball measure on Compact Metric Space

Let $(X,d)$ be a separable compact metric space, does there necessarily exist a probability measure $\nu$ on $(X,d)$ such that

  • $\frac{\nu(Ball(x,cr))}{\nu(Ball(x,r))}<\infty$ for every $x\in X$ and every $r>0$,
  • $\nu(Ball(x,r))>0$ for every $x \in X$ and $r>0$
  • $\nu$ is Borel.