  Two qubit operation sharing schemes [J. Phys. B 44 (2011) 165508] are
generalized to qutrit ones. Operations to be shared are classified into three
different classes in terms of different probabilities (i.e, 1/3, 2/3 and 1).
For the latter two classes, ten and three restricted sets of operations are
found out, respectively. Moreover, the two generalized schemes are amply
compared from four aspects, namely, quantum and classical resource consumption,
necessaryoperation complexity, success probability and efficiency. It is found
that the second scheme is overall more optimal than the first one as far as
three restricted sets of operations are concerned.
