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Lyapunov's type inequalities for fourth-order differential equations - MaRDI portal

Lyapunov's type inequalities for fourth-order differential equations (Q437628)

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scientific article; zbMATH DE number 6058160
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Lyapunov's type inequalities for fourth-order differential equations
scientific article; zbMATH DE number 6058160

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    Lyapunov's type inequalities for fourth-order differential equations (English)
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    18 July 2012
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    Summary: For a fourth-order differential equation, we will establish some new Lyapunov-type inequalities, which give lower bounds of the distance between zeros of a nontrivial solution and also lower bounds of the distance between zeros of a solution and/or its derivatives. The main results will be proved by making use of Hardy's inequality and some generalizations of Opial-Wirtinger-type inequalities involving higher-order derivatives. Some examples are considered to illustrate the main results.
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