Skip to main content
added 3 characters in body
Source Link
qwert
  • 89
  • 8

So I use hint from Clement with $E\left[\log\frac{X+\alpha}{k - X}\right]$, where $X\sim Bin_{(k-1),p}$ and $\alpha > 0$ is identical to calculating $E\left[\log\left(X+\alpha\right)\right]-E\left[\log\left(Y+1\right)\right]$ with $Y\sim Bin_{(k-1),(1-p)}$. To first check the convergence disc for the log-Taylor series I apply the ratio test. \begin{equation} T_{x_0}\left(\log(x+\alpha)\right)=\log\left(x_0+\alpha\right)+\sum_{i=1}^{\infty}\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}(x-x_0)^i \end{equation} My coefficient of the power series is $c_i=\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}$. Thus, the radius around the center $x_0$ is: \begin{equation} r=\lim_{i\rightarrow \infty}\left|\frac{c_i}{c_{i+1}}\right|=\lim_{i\rightarrow \infty}\left|\frac{(i-1)(x_0+\alpha)^{i+1}}{i(x_0+\alpha)^i}\right|=x_0+\alpha \end{equation} Thus, plugging in $x_0 = (k-1)p$ causes no trouble if $p=\frac12$$p\geq\frac12$, otherwise, the realization can be outside of the convergent disc centered at $x_0$. As in my setting, if $p\neq 0.5$ I could be either for $X$ or for $Y$ outside of the convergent disc.

So in the case of $p=0.5$, the Taylor series is convergent (sum of two convergent series) and therefore indeed it holds that \begin{equation} \lim_{k\rightarrow \infty}E\left[\log\frac{X+\alpha}{k-X}\right]=0 \end{equation} as the odd terms disappear because of symmetry and the even terms disappear because the big sum in the coeffient of the joint Taylor series above.

So I use hint from Clement with $E\left[\log\frac{X+\alpha}{k - X}\right]$, where $X\sim Bin_{(k-1),p}$ and $\alpha > 0$ is identical to calculating $E\left[\log\left(X+\alpha\right)\right]-E\left[\log\left(Y+1\right)\right]$ with $Y\sim Bin_{(k-1),(1-p)}$. To first check the convergence disc for the log-Taylor series I apply the ratio test. \begin{equation} T_{x_0}\left(\log(x+\alpha)\right)=\log\left(x_0+\alpha\right)+\sum_{i=1}^{\infty}\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}(x-x_0)^i \end{equation} My coefficient of the power series is $c_i=\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}$. Thus, the radius around the center $x_0$ is: \begin{equation} r=\lim_{i\rightarrow \infty}\left|\frac{c_i}{c_{i+1}}\right|=\lim_{i\rightarrow \infty}\left|\frac{(i-1)(x_0+\alpha)^{i+1}}{i(x_0+\alpha)^i}\right|=x_0+\alpha \end{equation} Thus, plugging in $x_0 = (k-1)p$ causes no trouble if $p=\frac12$, otherwise, the realization can be outside of the convergent disc centered at $x_0$. As in my setting, if $p\neq 0.5$ I could be either for $X$ or for $Y$ outside of the convergent disc.

So in the case of $p=0.5$, the Taylor series is convergent (sum of two convergent series) and therefore indeed it holds that \begin{equation} \lim_{k\rightarrow \infty}E\left[\log\frac{X+\alpha}{k-X}\right]=0 \end{equation} as the odd terms disappear because of symmetry and the even terms disappear because the big sum in the coeffient of the joint Taylor series above.

So I use hint from Clement with $E\left[\log\frac{X+\alpha}{k - X}\right]$, where $X\sim Bin_{(k-1),p}$ and $\alpha > 0$ is identical to calculating $E\left[\log\left(X+\alpha\right)\right]-E\left[\log\left(Y+1\right)\right]$ with $Y\sim Bin_{(k-1),(1-p)}$. To first check the convergence disc for the log-Taylor series I apply the ratio test. \begin{equation} T_{x_0}\left(\log(x+\alpha)\right)=\log\left(x_0+\alpha\right)+\sum_{i=1}^{\infty}\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}(x-x_0)^i \end{equation} My coefficient of the power series is $c_i=\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}$. Thus, the radius around the center $x_0$ is: \begin{equation} r=\lim_{i\rightarrow \infty}\left|\frac{c_i}{c_{i+1}}\right|=\lim_{i\rightarrow \infty}\left|\frac{(i-1)(x_0+\alpha)^{i+1}}{i(x_0+\alpha)^i}\right|=x_0+\alpha \end{equation} Thus, plugging in $x_0 = (k-1)p$ causes no trouble if $p\geq\frac12$, otherwise, the realization can be outside of the convergent disc centered at $x_0$. As in my setting, if $p\neq 0.5$ I could be either for $X$ or for $Y$ outside of the convergent disc.

So in the case of $p=0.5$, the Taylor series is convergent (sum of two convergent series) and therefore indeed it holds that \begin{equation} \lim_{k\rightarrow \infty}E\left[\log\frac{X+\alpha}{k-X}\right]=0 \end{equation} as the odd terms disappear because of symmetry and the even terms disappear because the big sum in the coeffient of the joint Taylor series above.

added 34 characters in body
Source Link
qwert
  • 89
  • 8

So I use hint from Clement with $E\left[\log\frac{X+\alpha}{k - X}\right]$, where $X\sim Bin_{(k-1),p}$ and $\alpha > 0$ is identical to calculating $E\left[X+\alpha\right]-E\left[Y+1\right]$$E\left[\log\left(X+\alpha\right)\right]-E\left[\log\left(Y+1\right)\right]$ with $Y\sim Bin_{(k-1),(1-p)}$. To first check the convergence disc for the log-Taylor series I apply the ratio test. \begin{equation} T_{x_0}\left(\log(x+\alpha)\right)=\log\left(x_0+\alpha\right)+\sum_{i=1}^{\infty}\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}(x-x_0)^i \end{equation} My coefficient of the power series is $c_i=\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}$. Thus, the radius around the center $x_0$ is: \begin{equation} r=\lim_{i\rightarrow \infty}\left|\frac{c_i}{c_{i+1}}\right|=\lim_{i\rightarrow \infty}\left|\frac{(i-1)(x_0+\alpha)^{i+1}}{i(x_0+\alpha)^i}\right|=x_0+\alpha \end{equation} Thus, plugging in $x_0 = (k-1)p$ causes no trouble if $p=\frac12$, otherwise, the realization can be outside of the convergent disc centered at $x_0$. As in my setting, if $p\neq 0.5$ I could be either for $X$ or for $Y$ outside of the convergent disc.

So in the case of $p=0.5$, the Taylor series is convergent (sum of two convergent series) and therefore indeed it holds that \begin{equation} \lim_{k\rightarrow \infty}E\left[\log\frac{X+\alpha}{k-X}\right]=0 \end{equation} as the odd terms disappear because of symmetry and the even terms disappear because the big sum in the coeffient of the joint Taylor series above.

So I use hint from Clement with $E\left[\log\frac{X+\alpha}{k - X}\right]$, where $X\sim Bin_{(k-1),p}$ and $\alpha > 0$ is identical to calculating $E\left[X+\alpha\right]-E\left[Y+1\right]$ with $Y\sim Bin_{(k-1),(1-p)}$. To first check the convergence disc for the log-Taylor series I apply the ratio test. \begin{equation} T_{x_0}\left(\log(x+\alpha)\right)=\log\left(x_0+\alpha\right)+\sum_{i=1}^{\infty}\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}(x-x_0)^i \end{equation} My coefficient of the power series is $c_i=\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}$. Thus, the radius around the center $x_0$ is: \begin{equation} r=\lim_{i\rightarrow \infty}\left|\frac{c_i}{c_{i+1}}\right|=\lim_{i\rightarrow \infty}\left|\frac{(i-1)(x_0+\alpha)^{i+1}}{i(x_0+\alpha)^i}\right|=x_0+\alpha \end{equation} Thus, plugging in $x_0 = (k-1)p$ causes no trouble if $p=\frac12$, otherwise, the realization can be outside of the convergent disc centered at $x_0$. As in my setting, if $p\neq 0.5$ I could be either for $X$ or for $Y$ outside of the convergent disc.

So in the case of $p=0.5$, the Taylor series is convergent (sum of two convergent series) and therefore indeed it holds that \begin{equation} \lim_{k\rightarrow \infty}E\left[\log\frac{X+\alpha}{k-X}\right]=0 \end{equation} as the odd terms disappear because of symmetry and the even terms disappear because the big sum in the coeffient of the joint Taylor series above.

So I use hint from Clement with $E\left[\log\frac{X+\alpha}{k - X}\right]$, where $X\sim Bin_{(k-1),p}$ and $\alpha > 0$ is identical to calculating $E\left[\log\left(X+\alpha\right)\right]-E\left[\log\left(Y+1\right)\right]$ with $Y\sim Bin_{(k-1),(1-p)}$. To first check the convergence disc for the log-Taylor series I apply the ratio test. \begin{equation} T_{x_0}\left(\log(x+\alpha)\right)=\log\left(x_0+\alpha\right)+\sum_{i=1}^{\infty}\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}(x-x_0)^i \end{equation} My coefficient of the power series is $c_i=\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}$. Thus, the radius around the center $x_0$ is: \begin{equation} r=\lim_{i\rightarrow \infty}\left|\frac{c_i}{c_{i+1}}\right|=\lim_{i\rightarrow \infty}\left|\frac{(i-1)(x_0+\alpha)^{i+1}}{i(x_0+\alpha)^i}\right|=x_0+\alpha \end{equation} Thus, plugging in $x_0 = (k-1)p$ causes no trouble if $p=\frac12$, otherwise, the realization can be outside of the convergent disc centered at $x_0$. As in my setting, if $p\neq 0.5$ I could be either for $X$ or for $Y$ outside of the convergent disc.

So in the case of $p=0.5$, the Taylor series is convergent (sum of two convergent series) and therefore indeed it holds that \begin{equation} \lim_{k\rightarrow \infty}E\left[\log\frac{X+\alpha}{k-X}\right]=0 \end{equation} as the odd terms disappear because of symmetry and the even terms disappear because the big sum in the coeffient of the joint Taylor series above.

edited body
Source Link
qwert
  • 89
  • 8

So I use hint from Clement with $E\left[\log\frac{X+\alpha}{k - X}\right]$, where $X\sim Bin_{(k-1),p}$ and $\alpha > 0$ is identical to calculating $E\left[X+\alpha\right]-E\left[Y+1\right]$ with $Y\sim Bin_{(k-1),(1-p)}$. To first check the convergence disc for the log-Taylor series I apply the ratio test. \begin{equation} T_{x_0}\left(\log(x+\alpha)\right)=\log\left(x_0+\alpha\right)+\sum_{i=1}^{\infty}\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}(x-x_0)^i \end{equation} My coefficient of the power series is $c_i=\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}$. Thus, the radius around the center $x_0$ is: \begin{equation} r=\lim_{i\rightarrow \infty}\left|\frac{c_i}{c_{i+1}}\right|=\lim_{i\rightarrow \infty}\left|\frac{(i-1)(x_0+\alpha)^{i+1}}{i(x_0+\alpha)^i}\right|=x_0+\alpha \end{equation} Thus, plugging in $x_0 = (k-1)p$ causes no trouble if $p>\frac12$$p=\frac12$, otherwise, the realization can be outside of the convergent disc centered at $x_0$. As in my setting, if $p\neq 0.5$ I could be either for $X$ or for $Y$ outside of the convergent disc.

So in the case of $p=0.5$, the Taylor series is convergent (sum of two convergent series) and therefore indeed it holds that \begin{equation} \lim_{k\rightarrow \infty}E\left[\log\frac{X+\alpha}{k-X}\right]=0 \end{equation} as the odd terms disappear because of symmetry and the even terms disappear because the big sum in the coeffient of the joint Taylor series above.

So I use hint from Clement with $E\left[\log\frac{X+\alpha}{k - X}\right]$, where $X\sim Bin_{(k-1),p}$ and $\alpha > 0$ is identical to calculating $E\left[X+\alpha\right]-E\left[Y+1\right]$ with $Y\sim Bin_{(k-1),(1-p)}$. To first check the convergence disc for the log-Taylor series I apply the ratio test. \begin{equation} T_{x_0}\left(\log(x+\alpha)\right)=\log\left(x_0+\alpha\right)+\sum_{i=1}^{\infty}\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}(x-x_0)^i \end{equation} My coefficient of the power series is $c_i=\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}$. Thus, the radius around the center $x_0$ is: \begin{equation} r=\lim_{i\rightarrow \infty}\left|\frac{c_i}{c_{i+1}}\right|=\lim_{i\rightarrow \infty}\left|\frac{(i-1)(x_0+\alpha)^{i+1}}{i(x_0+\alpha)^i}\right|=x_0+\alpha \end{equation} Thus, plugging in $x_0 = (k-1)p$ causes no trouble if $p>\frac12$, otherwise, the realization can be outside of the convergent disc centered at $x_0$. As in my setting, if $p\neq 0.5$ I could be either for $X$ or for $Y$ outside of the convergent disc.

So in the case of $p=0.5$, the Taylor series is convergent (sum of two convergent series) and therefore indeed it holds that \begin{equation} \lim_{k\rightarrow \infty}E\left[\log\frac{X+\alpha}{k-X}\right]=0 \end{equation} as the odd terms disappear because of symmetry and the even terms disappear because the big sum in the coeffient of the joint Taylor series above.

So I use hint from Clement with $E\left[\log\frac{X+\alpha}{k - X}\right]$, where $X\sim Bin_{(k-1),p}$ and $\alpha > 0$ is identical to calculating $E\left[X+\alpha\right]-E\left[Y+1\right]$ with $Y\sim Bin_{(k-1),(1-p)}$. To first check the convergence disc for the log-Taylor series I apply the ratio test. \begin{equation} T_{x_0}\left(\log(x+\alpha)\right)=\log\left(x_0+\alpha\right)+\sum_{i=1}^{\infty}\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}(x-x_0)^i \end{equation} My coefficient of the power series is $c_i=\frac{(-1)^{i-1}}{i(x_0+\alpha)^i}$. Thus, the radius around the center $x_0$ is: \begin{equation} r=\lim_{i\rightarrow \infty}\left|\frac{c_i}{c_{i+1}}\right|=\lim_{i\rightarrow \infty}\left|\frac{(i-1)(x_0+\alpha)^{i+1}}{i(x_0+\alpha)^i}\right|=x_0+\alpha \end{equation} Thus, plugging in $x_0 = (k-1)p$ causes no trouble if $p=\frac12$, otherwise, the realization can be outside of the convergent disc centered at $x_0$. As in my setting, if $p\neq 0.5$ I could be either for $X$ or for $Y$ outside of the convergent disc.

So in the case of $p=0.5$, the Taylor series is convergent (sum of two convergent series) and therefore indeed it holds that \begin{equation} \lim_{k\rightarrow \infty}E\left[\log\frac{X+\alpha}{k-X}\right]=0 \end{equation} as the odd terms disappear because of symmetry and the even terms disappear because the big sum in the coeffient of the joint Taylor series above.

Source Link
qwert
  • 89
  • 8
Loading