How to prove that the Modified Boole Transformation preserves the following measure?












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Operator Theoretic Aspects of Ergodic Theory. T. Eisner. B. Farkas. M. Haase and R. Nagel. Page 90 Exercise 3.
How to prove that the following transformation $$T:mathbb{R}rightarrow mathbb{R}$$
$$T(x)=frac{1}{2}left(x-frac{1}{x}right) : xin mathbb{R-{0}}$$ $$T(0)=0$$ preserves the following measure $$lambdaleft([a,b]right)=int_{a}^{b}frac{dx}{pi(1+x^2)}$$










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    $begingroup$


    Operator Theoretic Aspects of Ergodic Theory. T. Eisner. B. Farkas. M. Haase and R. Nagel. Page 90 Exercise 3.
    How to prove that the following transformation $$T:mathbb{R}rightarrow mathbb{R}$$
    $$T(x)=frac{1}{2}left(x-frac{1}{x}right) : xin mathbb{R-{0}}$$ $$T(0)=0$$ preserves the following measure $$lambdaleft([a,b]right)=int_{a}^{b}frac{dx}{pi(1+x^2)}$$










    share|cite|improve this question











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      $begingroup$


      Operator Theoretic Aspects of Ergodic Theory. T. Eisner. B. Farkas. M. Haase and R. Nagel. Page 90 Exercise 3.
      How to prove that the following transformation $$T:mathbb{R}rightarrow mathbb{R}$$
      $$T(x)=frac{1}{2}left(x-frac{1}{x}right) : xin mathbb{R-{0}}$$ $$T(0)=0$$ preserves the following measure $$lambdaleft([a,b]right)=int_{a}^{b}frac{dx}{pi(1+x^2)}$$










      share|cite|improve this question











      $endgroup$




      Operator Theoretic Aspects of Ergodic Theory. T. Eisner. B. Farkas. M. Haase and R. Nagel. Page 90 Exercise 3.
      How to prove that the following transformation $$T:mathbb{R}rightarrow mathbb{R}$$
      $$T(x)=frac{1}{2}left(x-frac{1}{x}right) : xin mathbb{R-{0}}$$ $$T(0)=0$$ preserves the following measure $$lambdaleft([a,b]right)=int_{a}^{b}frac{dx}{pi(1+x^2)}$$







      probability-theory measure-theory proof-verification proof-writing ergodic-theory






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      edited Dec 19 '18 at 8:40







      Neil hawking

















      asked Dec 13 '18 at 3:58









      Neil hawkingNeil hawking

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