Depending on context, the subscript i may match the subscript on a vertex, so that d_i is the degree of v_i, or the subscript may indicate the position of d_i in an increasing or decre...Depending on context, the subscript i may match the subscript on a vertex, so that d_i is the degree of v_i, or the subscript may indicate the position of d_i in an increasing or decreasing list of the degrees; for example, we may state that the degree sequence is d_1\le d_2\le \cdots\le d_n.
