Image length

value

Denoted by

image

2

$i_1=\text{1},i_2=i_3=\cdots =i_{n-1}=\text{0}$

$i_{\text{1},\text{0},\text{0},\cdots ,\text{0}}$

${\lambda }_{1n}{x}_1{x}_n$

$i_2=\text{1},i_1=i_3=\cdots =i_{n-1}=\text{0}$

$i_{\text{0},\text{1},\text{0},\cdots ,\text{0}}$

${\lambda }_{2n}{x}_{\text{2}}{x}_n$

$\cdots$

$\cdots$

$\cdots$

$i_{n-1}=\text{1},i_1=i_2=\cdots =i_{n-2}=\text{0}$

$i_{\text{0},\text{0},\text{0},\cdots ,\text{1}}$

${\lambda }_{n-1n}{x}_{n-1}{x}_n$

3

$i_1=i_2=\text{1,}{i}_3=\cdots =i_{n-1}=\text{0}$

$i_{\text{1},\text{1},\text{0},\cdots ,\text{0}}$

$\left({\lambda }_{\text{1}n}+{\lambda }_{\text{2}n}\right)x_1{x}_{\text{2}}{x}_n$

$i_1=i_{\text{3}}=\text{1,}{i}_{\text{2}}=\cdots =i_{n-1}=\text{0}$

$i_{\text{1},\text{0},\text{1},\cdots ,\text{0}}$

$\left({\lambda }_{\text{1}n}+{\lambda }_{\text{3}n}\right)x_1{x}_{\text{3}}{x}_n$

$\cdots$

$\cdots$

$\cdots$

$i_{n-\text{2}}=i_{n-\text{1}}=\text{1},i_1=\cdots =i_{n-\text{3}}=\text{0}$

$i_{\text{0},\text{0},\cdots ,\text{1},\text{1}}$

$\left({\lambda }_{n-\text{2}n}+{\lambda }_{n-\text{1}n}\right)x_{n-\text{2}}{x}_{n-\text{1}}{x}_n$

$\cdots$

$n-\text{1}$

$i_1=0,i_2=i_3=\cdots =i_{n-1}=1$

$i_{0,1,1,\cdots ,1}$

$\left({\lambda }_{2n}+\cdots +{\lambda }_{n-1n}\right){\widehat{x}}_1{x}_2\cdots x_{n-1}{x}_n$

$i_2=0,i_1=i_3=\cdots =i_{n-1}=1$

$i_{1,0,1,\cdots ,1}$

$\left({\lambda }_{\text{1}n}+\cdots +{\lambda }_{n-1n}\right)x_{\text{1}}{\widehat{x}}_{\text{2}}\cdots x_{n-1}{x}_n$

$\cdots$

$\cdots$

$\cdots$

$i_{n-1}=0,i_1=i_2=\cdots =i_{n-2}=1$

$i_{1,1,1,\cdots ,0}$

$\left({\lambda }_{\text{1}n}+\cdots +{\lambda }_{n-\text{2}n}\right)x_{\text{1}}\cdots x_{n-2}{\widehat{x}}_{n-1}{x}_n$

n

$i_1=i_2=\cdots =i_{n-2}=i_{n-1}=1$

$i_{1,1,\cdots ,1,\text{1}}$

$\left({\lambda }_{\text{1}n}+\cdots +{\lambda }_{n-\text{1}n}\right)x_{\text{1}}\cdots x_n$