The residuals obtained from fitting a structural equation model are crucial ingredients in obtaining chi-square goodness-of-fit statistics for the model. The authors present a didactic discussion of ...

Proceedings of the American Mathematical Society, Vol. 54, No. 1 (Jan., 1976), pp. 57-58 (2 pages) Let G be a finitely generated nilpotent group. Let S1 and S2 be subgroups of G. Let S1S 2 be the set ...