5. Let (α1,α2,...,ân) and (b1,b2,...,bn) be two n-tuples 1 1 bers and let p, q be two positive real numbers such that + of indices is called a pair of conjugate indices.) Then the inequality p q 1/p P |Σα|= (Σ11)" (Σ11) j=1 j=1 j=1 19 1/9 " = 1. (

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