; TeX output 2006.11.21:2113 - L҅ 6XI5f cmcsc8DocumentuUa#Math. : K`y cmr103014e̍ I_?- cmcsc10-AdicEulerCharacteristicsofEllipticCurves" h$ ': cmti10T;oJohnCo}'atesontheoccasionofhissixtiethbirthday >]+- cmcsc10DUanielDelbourgo |{Y cmr8ReceivÎed: JulyX11,2005 &Revised: FJebruaryX17,20064BXIAbstract. ALetb> cmmi10E: 0er cmmi7==qy msbm7QnbGeamodularellipticcurve,aandp&>3agoodBXIordinaryUUorsemistableprime.BXIUnderrmildrhypGotheses,Rweproveranexactformulaforthe-invqariantBXIassoGciatedقtoكtheweight-deformationofقtheT*atemoGduleofE .HF*orexam-BXIple,oatjordinaryiprimesintherange3g: