Generalized regular variation of second order

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Abstract
Assume that for a measurable funcionfon (0, ∞) there exist a positive auxiliary functiona(t)and some γ ∈ R such that. Thenfis said to be of generalized regular variation. In order to control the asymptotic behaviour of certain estimators for distributions in extreme value theory we are led to study regular variation of second order, that is, we assume thatexists non-trivially with a second auxiliary function a1(t). We study the possible limit functions in this limit relation (defining generalized regular variation of second order) and their domains of attraction. Furthermore we give the corresponding relation for the inverse function of a monotonefwith the stated property. Finally, we present an Abel-Tauber theorem relating these functions and their Laplace transforms.

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