- 期刊
CONVEXITY, BOUNDEDNESS, AND ALMOST PERIODICITY FOR DIFFERENTIAL EQUATIONS IN HILBERT SPACE
並列摘要
There are three kinds of results. First we extend and sharpen a convexity inequality of Agmon and Nirenberg for certain differential inequalities in Hilbert space. Next we characterize the bounded solutions of a differential equation in Hilbert space involving and arbitrary unbounded normal operator. Finally, we give a general sufficient condition for a bounded solution of a differential equation in Hilbert space to be almost periodic.
延伸閱讀
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