“…weighted composition operator by Zhu in [65], and studied in [45,55,[61][62][63][65][66][67][68][69]. The product W ϕ,ψ D n can be regarded as a generalization of W ϕ,ψ D. For some other product-type operators, see, for example, [10,[18][19][20][21][34][35][36][37][38]41,42,44,47,[51][52][53]56,57] and the references therein.…”