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Table 1 Commutator table of the Lie algebra of equation ( 1 )

From: On the solutions and conservation laws of the coupled Drinfeld-Sokolov-Satsuma-Hirota system

 

X 1

X 2

X 3

X 4

X 1

0

0

0

3 X 2

X 2

0

0

0

X 2

X 3

0

0

0

−2 X 3

X 4

−3 X 2

− X 2

2 X 3

0