Solution of Hallam’s problem on the terminal comparison principle for ordinary differential inequalities

Vidossich, Giovanni

doi:10.1090/S0002-9947-1976-0412524-2

Solution of Hallam’s problem on the terminal comparison principle for ordinary differential inequalities
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by Giovanni Vidossich PDF

Trans. Amer. Math. Soc. 220 (1976), 115-132 Request permission

Abstract:

We solve affirmatively the open problem raised by Hallam [3] and we apply this result to classical differential inequalities as well as to get existence and uniqueness theorems for the terminal value problem for ordinary differential equations.

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