Prove that, for any sequences of real numbers {an} and {bn}, we have
∞∑m=1∞∑n=1ambnm+n≤π(∞∑m=1a2m)1/2(∞∑n=1b2n)1/2
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Prove that, for any sequences of real numbers {an} and {bn}, we have
∞∑m=1∞∑n=1ambnm+n≤π(∞∑m=1a2m)1/2(∞∑n=1b2n)1/2