The positive definiteness of elasticity tensors plays an important role in the elasticity theory.In this paper,we consider the bi-block symmetric tensors,which
Let (a) :=(a1,...,an) ∈[1,∞)n,(p):=(p1,...,pn) ∈ (0,1]n,H(p)(a)(Rn)be the anisotropic mixed-norm Hardy space associated with (a) defined via the radial maxim