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Philip Hartman

Philip Hartman
Born (1915-05-16)16 May 1915
Baltimore
Died 28 August 2015(2015-08-28) (aged 100)
Nationality  United States
Fields Mathematics, Differential equations
Institutions Johns Hopkins University
Queens College
Alma mater Johns Hopkins University
Doctoral advisor Aurel Wintner
Known for Hartman–Grobman theorem
Notable awards Guggenheim Fellowship (Mathematics, 1950),
Honorary Member of the AMS

Philip Hartman (May 16, 1915 – August 28, 2015) was an American mathematician at Johns Hopkins University working on differential equations who introduced the Hartman–Grobman theorem. He served as Chairman of the Mathematics Department at Johns Hopkins for several years.

His book gives a necessary and sufficient condition for solutions of ordinary initial value problems to be unique and to depend on a class C1 manner on the initial conditions for solutions.

He died in August 2015 at the age of 100.


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