TY - JOUR TI - Regularly varying functions AU - Jessen Hedegaard Anders AU - Mikosch Thomas JN - Publications de l'Institut Mathematique PY - 2006 VL - 80 IS - 94 SP - 171 EP - 192 PT- Article AB- We consider some elementary functions of the components of a regularly varying random vector such as linear combinations, products, minima, maxima, order statistics, powers. We give conditions under which these functions are again regularly varying, possibly with a different index.