ABSTRACT
As we have seen, the SMART is best derived as an alternating minimization (AM) algorithm. The main reference for alternating minimization is the paper [105] of Csisza´r and Tusna´dy. As the authors of [206] remark, the geometric argument in [105] is “deep, though hard to follow”. As we shall see, all AM methods for which the five-point property of [105] holds fall into the SUMMA class (see [66]).
