Question: If f is a ch.f., then show that / is positive definite; i.e., for all tk, t1 reals and all complex numbers zk, z1, we

If f is a ch.f., then show that / is positive definite; i.e., for all tk, t1 reals and all complex numbers zk, z1, we have

If f is a ch.f., then show that / is

for every integer n ‰¥ 1.

R FI PL 1,10 k)k 1 lel

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