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Displaying similar documents to “Ostrowski's type inequalities for continuous functions of selfadjoint operators on Hilbert spaces: a survey of recent results.”

Some quadratic integral inequalities of Opial type

Małgorzata Kuchta (1996)

Annales Polonici Mathematici

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We derive and investigate integral inequalities of Opial type: I s | h h ̇ | d t I r h ̇ ² d t , where h ∈ H, I = (α,β) is any interval on the real line, H is a class of absolutely continuous functions h satisfying h(α) = 0 or h(β) = 0. Our method is a generalization of the method of [3]-[5]. Given the function r we determine the class of functions s for which quadratic integral inequalities of Opial type hold. Such classes have hitherto been described as the classes of solutions of a certain differential equation....