TheJoker
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### Answers (39)

 12 $I_m - AB$ is invertible if and only if $I_n - BA$ is invertible. 11 What is degree of freedom in statistics? 9 Prove convergence of the sequence $(z_1+z_2+\cdots + z_n)/n$ of Cesaro means 8 Can we characterize the Möbius transformations that maps the unit circle into itself? 6 Meaning of the word 'linear' in mathematics

### Reputation (1,366)

 +20 Prove convergence of the sequence $(z_1+z_2+\cdots + z_n)/n$ of Cesaro means +20 What is degree of freedom in statistics? +10 $I_m - AB$ is invertible if and only if $I_n - BA$ is invertible. +10 Can we characterize the Möbius transformations that maps the unit circle into itself?

### Question (1)

 2 inequality of definite integrals involving ${F'(x)}^2$ and ${F(x)}^2$

### Tags (45)

 18 statistics × 6 9 sequences-and-series 16 linear-algebra × 4 9 cesaro-summable 13 matrices × 2 7 probability × 5 12 complex-analysis × 3 6 calculus × 4 10 soft-question × 3 4 education × 2

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