Figure convolution in the first order chebyshev implementation of GCN why Λ and A characteristic value in [0, 2] between? And the right arrow here - what meaning?

CodePudding user response:

Chebyshev polynomial $T_k (x)=\ cos (k \ arccos (x)) $$$x scope is [1, 1], which requires Λ and A characteristic value of compression to [0, 2], [1, 1] is minus 1,

Right arrow "->" means the right instead of on the left,