PONTRYaGIN Lev Semyonovich (tavalludash 3. 9. 1908, Moskva), matematiki soveti, akad. AF SSSR (1958; azo- korr. 1939), Qahramoni Mehnati bino shud. Universiteti davlatii Moskvaro khatm kardaast (1929). Az soli 1939 mudiri shubai Instituti matematikai AF SSSR ba nomi V. A. Steklov, professori Universiteti Davlatii Moskva (1935). Dar topologiya qonuni umumii tasniyaro kashf namuda, dar zimni on nazariyai kharakterhoi guruhhoi befosilaro bunyod kard; dar sohai vazariyai gomotopiya yak silsila tadqiqotro anjom dod, ki natijahoyash dar ilm bo nomi «sinfhoi Pontryagin» marufand. Pontryagin muallifi nazariyai matematikii prosesshoi optimali meboshad, ki mansub ba nazariyai idora ast. Dar nazariyai bozihoi differensiali niz natijahoi barjasta ba dast ovard. Hissai ilmii Pontryagin makhsusan dar inkishofi nazariyai idorakuni va hisobi variatsioni khele kalon ast. Pontryagin azoi fakhrii Jamiyati matematikhoi London (1953), Akademiyai baynalkhalqii «Astronavtika» (1966), azoi fakhrii AF RKhV (1972) meboshad. Solhoi 1970—1974 joib-prezidenti Ittifoqi baynalkhalqii matematikho bud: Laureat Mukofoti davlatii SSSR (1941), Mukofoti lenini (1962). Bo 3 ordeni Lenin va digar ordenu medalho mukofotonida shudaast.
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SADUDDINI HAMMUI Muhammad ibni Juvayni
SADUDDINI HAMMUI Muhammad ibni Juvayni (soli tavallud nomalum — Vafot 1252), yake az namoyandagoni mashhuri …