${\partial }_k{\partial }_j\left({\nabla }_l{\xi }_i+{\nabla }_i{\xi }_l\right)$

(1, 2)

${\partial }_k{\partial }_l\left({\nabla }_j{\xi }_i+{\nabla }_i{\xi }_j\right)$

(3, 4)

$-{\partial }_k{\partial }_i\left({\nabla }_j{\xi }_l+{\nabla }_l{\xi }_j\right)$

(5, 6)

$-{\partial }_l{\partial }_j\left({\nabla }_k{\xi }_i+{\nabla }_i{\xi }_k\right)$

(7, 8)

$-{\partial }_l{\partial }_k\left({\nabla }_i{\xi }_j+{\nabla }_j{\xi }_i\right)$

(9, 10)

${\partial }_l{\partial }_i\left({\nabla }_i{\xi }_j+{\nabla }_j{\xi }_k\right)$

(11, 12)

${\partial }_l{\partial }_j\left({\nabla }_k{\xi }_i+{\nabla }_i{\xi }_k\right)$

(13, 14)

${\partial }_l{\partial }_k\left({\nabla }_i{\xi }_j+{\nabla }_j{\xi }_i\right)$

(15, 16)

$-{\partial }_l{\partial }_i\left({\nabla }_i{\xi }_j+{\nabla }_j{\xi }_k\right)$

(17, 18)

$-{\partial }_j{\partial }_k\left({\nabla }_l{\xi }_i+{\nabla }_i{\xi }_l\right)$

(19, 20)

$-{\partial }_j{\partial }_l\left({\nabla }_k{\xi }_i+{\nabla }_i{\xi }_k\right)$

(21, 22)

${\partial }_j{\partial }_i\left({\nabla }_k{\xi }_l+{\nabla }_k{\xi }_k\right)$

(23, 24)

${\partial }_j{\partial }_k\left({\nabla }_l{\xi }_i+{\nabla }_i{\xi }_l\right)$

(25, 26)

${\partial }_j{\partial }_l\left({\nabla }_k{\xi }_i+{\nabla }_i{\xi }_k\right)$

(27, 28)

$-{\partial }_j{\partial }_i\left({\nabla }_k{\xi }_l+{\nabla }_k{\xi }_k\right)$

(29, 30)

$-{\partial }_k{\partial }_j\left({\nabla }_l{\xi }_i+{\nabla }_i{\xi }_l\right)$

(31, 32)

$-{\partial }_k{\partial }_l\left({\nabla }_j{\xi }_i+{\nabla }_i{\xi }_j\right)$

(33, 34)

${\partial }_k{\partial }_i\left({\nabla }_j{\xi }_l+{\nabla }_l{\xi }_j\right)$

(35, 36)