suppose you have a sequence of random variables . Then what does mean? it does not make sense to me since if n is fixed then is a constant. Is it the same thing as ?
suppose you have a sequence of random variables . Then what does mean? it does not make sense to me since if n is fixed then is a constant. Is it the same thing as ?
is a constant
So all you're asking is what is a supremum of a sequence
limsup is the limit of the largest subsequence.