The fill handle can be used to automatically enter a series of related labels or formulas

If you ________ a heading level, it is moved down one level (to the right in the outline)

Fill in the blank(s) with correct word

For a graph signal lying on an N-node directed ring graph, considering the weight matrix as the shift operator, answer the following:

(a) Write down the TV expression for the graph Fourier basis. (b) Identify and order the graph frequencies. (c) Compare your results with the conventional frequencies in the DFT.