|
Joseph Pierre (Joe) LaSalle (born 28 May 1916 in State College, Pennsylvania; died 7 July 1983 in Little Compton, Rhode Island) was an American mathematician specialising in dynamical systems and responsible for important contributions to stability theory, such as the LaSalle's invariance principle which bears his name. ==Biography== Joseph LaSalle defended his PhD thesis on ″Pseudo-Normed Linear Sets over Valued Rings″ at the California Institute of Technology in 1941.〔(J. P. LaSalle on the Mathematics Genealogy Project )〕 In 1946 he joined the Mathematics Department at the University of Notre Dame as an assistant professor and remained there until 1958, becoming a full professor in 1956.〔(SIAM J. Control Optim., 21(6), vii–ix. In Memoriam )〕 During a visit to Princeton in 1947-1948, LaSalle developed a deep interest in differential equations through his interaction with Solomon Lefschetz and Richard Bellman, with whom he developed a close friendship.〔 From 1958 until 1964 LaSalle was based at the Research Institute for Advanced Studies (RIAS) in Baltimore, where he worked closely with Lefschetz and in 1960 published his extension of Lyapunov stability theory, known today as the LaSalle's invariance principle.〔 In 1962-1963 he was President of the Society for Industrial and Applied Mathematics (SIAM)〔(Presidents of SIAM )〕 and was a member of its board of trustees in 1964-1967.〔 In 1964 LaSalle founded the ''Journal of Differential Equations''〔(Journal of Differential Equations Editorial Board )〕 and served as its Editor-in-Chief until 1980.〔 In 1964 he became the first director of the Center for Dynamical Systems at Brown University, where he was also the chairman of the Division of Applied Mathematics in 1968-1973.〔(Center for Dynamical Systems at Brown University )〕 Together with J. K. Hale, LaSalle was the recipient of the 1965 Chauvenet Prize for their exposition in the piece on ''Differential Equations: Linearity vs. Nonlinearity'' published in the SIAM Review.〔(Mathematical Association of America, Chauvenet Prize recipients )〕 In 1975 he was awarded the Guggenheim Fellowship for applied mathematics.〔(Joseph P. LaSalle Guggenheim Fellowship, 1975 )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Joseph P. LaSalle」の詳細全文を読む スポンサード リンク
|