PUASSON Simeon Deni

PUASSON (Poisson) Simeon Deni (21. 6. 1781), Pitive, departamen­ti Luara—25. 4. 1840, Parij), oli­mi fransavi, azoi AF Parij (1812), azoi fakhrii AF Peterburg (1826). Badi khatmi Maktabi poli­tekhnikii Parij (1800) dar hamonjo kor kardaast (az 1806 professor). Az soli 1809 professori Universiteti Parij. Asarhoi Puasson beshtar ba mekhanikai nazariyaviva mekhanikai osmon, matema­tika va fizikai matematiki oidand: u bori avval muodilai mekhanikai tahliliro dar asosi tashkildihandahoi impuls tartib dodaast. Dar gidromekhanika muodilai Nave- Stoksro baroi mavridi harakati moei tazyiqpaziri galiz (intiqo­li garmiro niz ba hisob girifta) tamim dod. Yak qator masalahoi nazariyai chandiriro hal kard, mafhumi koeffitsieti Puas­sonro jori namud va yak qator muodilahoi nazariyai chandiriro baroi qismhoi anizotropi tamim dod. Dar mekhanikai osmoni ustuvorii harakati sayyorahoi Sistemai Oftobro tahdid namuda, ba khalli masalahoe, ki ba galayoni madori sayyoraho va harakati Zamin dar girdi markazi vazniniash aloqamandand, niz mashgul shudaast. Oid ba potentsialho, hisobi differensialiyu integrali va nazariyai ehtimoliyat tadqiqot burda, dar ma­tematika muodilai Puasson, integrali Puasson, formullai summironii Puasson, teoremai Puasson, taqsimoti Puasson barin mafhumhoro jori namudaast. Masalahoi intiqoli garmi, magnetizm, kapilyarnoki, pahnshavii mavjhoi sado vaballistikapo niz tadqiq karaast.