?s r??????? t??? ?s? t?? ?r?t?r???s ?s?? ????r??? ??????? ??? ?rst ???s?sts ?? ???? t?? s???t??? ????s ?? t?? ??P ?r????? s?t?s??? ??? t?? ?r???, ???r?? t? t? ?????t? t?? s????tr???s ?? t??s ??tr?? ??? ?????r? ?ts r???s? ???s ?r?t?r??? ??? ?? ????? ?? t?? ???? ???ss?rr? ??????? ???r? ???ts t?? ???? ????r????s ??t??? ,
y(z + 1), z(z + 1), (z + 1) ????? ????r?t?s t?? ????????r ????? I min = (x 2 + y 2 ? 4 ,
?s???? t??s?r? ???? t??s?rs ?? r??? ?? ?? r???r t? ???r??r?? ?????? ??r????t ????? ??r ??r? ??t?r??? ?? t??? s?r ???????s?t???? ???s ???????s?t??? ?????s t? ??tr??t ????r???ts ?r???rt??s ??? ?????tr? ?? t?? t??s?r? ??r t??s r??s?? t??s t??s?r ,
??P??? ???r?r??s ??r ??tr?? ?????t?t???s? ?t ?s ??s????? t? s???? s???? ??? ?????? s??? ??P ?r?????s? ?s????? t?? ?????r ?? ??r?????s m < 2000 ??? ??tr?? s???s n <, 2000. ,
?s ??s ?é???t???s ?t t?é?rè??s ?r???????? s?r ??s ??é??? ?t ??s ??r?étés? ???s ??tr????s??s ??ss? ???s???? ???? ?t ?é???ss??s ?? é?é???t ????rt??t ???s ??tr? ét???? ??s ??tr???s ?t ??ér?t??rs ?? ?????? ?t ??s ?r??r?étés ?? ???????? q??t???t q?? s???t???t ,
?t g ?st ré?????r? ?? ??s ?ù ?? ??r?été ré???? ??s (g 0 ) ?st ?? ?????s??? ????? ?? ??s ?ù ?? ??r?été ré???? ?? (g 0 ) ?q???? g = (g 0 )? ?st ??ss? ?t éq???? ,
5 ) log(? ?1 )) ?ù ? > 0 ?st?s ?? ?r?tèr? ???r ?rrêt?r ??tr? ????r?t???? ???s ???s s????s q?? ???s ??????s ré???ér?r ??s ????ts q?? ,