Graph Signal Processing, Fourier Transform, Graph Fourier Transform, Eigenvectors, Spectral Analysis.
shift A, are the graph spectral components, and the diagonal entries λk are the graph frequencies. The graph Fourier transform of a graph signal s can be written as follows, Graph Fourier transform of graph signal s where f0, … fN-1 are the row vectors in the inverse matrix of V. Now we can use the