what is extreme value theory is the extreme value of a distribution self related why is heavy tails important for the distribution does extreme value theory apply to heavy tailed distributions does extreme value theory apply to all distributions? what is ehrst what is the extreme value theory used for? why can't extreme value theory be used what is the urst parameter in a distribution what is the hurst parameter what is the parameter for extreme value can extreme value theory be used for heavy tails how to use extreme value theory what is the extreme value in math how is extreme value theorist used how to use extreme value theory why extreme value theory cannot be used in my case extreme value theory definition hurst parameter when is extreme value theory used