Summation rules for various types of convolutions have been the subject of much interest in The Fibonacci Quarterly. The following references are of particular relevance to this topic: Cohen and Hudson [8], Corley [9], Filipponi and Freitag [11], Gould [14], Haukkanen [15], Hsu [19], and finally Philippou and Georghiou [23]. Also consult Neuman and Schonbach’s SIAM Review article [22], where su...