▁the ▁implicit ▁E uler ▁method , ▁origin ating ▁from ▁the ▁( second ▁order ) ▁swe eping ▁process ▁formal ism ▁of ▁the ▁Lag range ▁dynamics ▁with ▁un il ater al ▁constraints ▁and ▁impact s , ▁which ▁is ▁a ▁specific ▁Me asure ▁D iffer ential ▁In clusion ▁( i . e ., ▁a ▁differential ▁inclusion ▁whose ▁solutions ▁are ▁measures ). ▁The ▁More au - Jean ▁scheme ▁has ▁inspired ▁several ▁groups ▁of ▁research ers ▁in ▁Europe ▁and ▁the ▁USA ▁for ▁the ▁simulation ▁of ▁non - sm ooth ▁mechanical ▁systems , ▁and ▁is ▁available ▁in ▁open - source ▁software ▁packages ▁like ▁the ▁IN RI A ▁S IC ON OS ▁platform ▁or ▁the ▁L M GC 9 0 ▁platform . ▁ ▁He ▁discovered ▁the ▁hel icity ▁invariant ▁in ▁the ▁fluid ▁dynamics ▁of ▁ideal ▁flu ids ▁in ▁ 1 9 6 2 . ▁ ▁More au ▁received ▁many ▁pri zes , ▁including ▁the ▁Grand ▁Prix ▁Jo ann id ès ▁of ▁the ▁Ac adémie ▁des ▁Sciences . ▁ ▁References ▁ ▁S ources ▁ ▁" A ▁short ▁bi ography ▁of ▁Jean ▁Jacques ▁More au ", ▁in ▁P . ▁Al art , ▁O . ▁Mais onne uve , ▁R . T . ▁Rock af ell ar , ▁N ons mo oth ▁mechan ics ▁and ▁analysis : ▁theoretical ▁and ▁numerical ▁adv ances ▁( pro ceed ings ▁of ▁a ▁sym pos ium ▁in ▁J . J . ▁More au ' s ▁honor ), ▁ 2 0 0 5 , ▁ ▁p . ▁ 1 1 ff ▁ ▁M . ▁Kun ze ▁and ▁M .