Recently, the concept of the complementary array of a Riordan array (or recursive matrix) has been introduced. Here we generalize the concept and distinguish between dual and complementary arrays. We show a number of properties of these arrays, how they are computed and their relation with inversion. Finally, we use them to Find explicit formulas for the elements of many recursive matrices. (C) 2014 Elsevier B.V. All rights reserved.
机构:
Dipartimento di Sistemi e Informatica, Università di Firenze, 50132 Florence, Viale MorgagniDipartimento di Sistemi e Informatica, Università di Firenze, 50132 Florence, Viale Morgagni