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Recently, Song and Qi extended the concept of P, P_0 and B matrices to P,P_0, B and B_0 tensors, obtained some properties about these tensors, andproposed many questions for further research. In this paper, we answer threequestions mentioned as above and obtain further results about P, P_0, B and B_0tensors.

Some remarks on P, P_0, B and B_0 tensors