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In this paper, we present explicit actions of braid group on the universal enveloping superalgebra U (qₙ) and the quantum queer superalgebra U\!ₕ (q₍). Then we provide a new definition of root vectors and some explicit expression for them. With these procedures, we obtain the PBW-type basis containing the product of root vectors.
Chen et al. (Sat,) studied this question.