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The underlying theme of the previous chapters was the Sturm-Liouville theory. The last three chapters show how the eigenfunctions of various SL problems serve as bases for \(\mathcal {L}^{2},\) either through conventional Fourier series or its generalized version.

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The Fourier Transformation

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  • 发表日期：

    2026年

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  • M. A. Al-Gwaiz

摘要

The underlying theme of the previous chapters was the Sturm-Liouville theory. The last three chapters show how the eigenfunctions of various SL problems serve as bases for \(\mathcal {L}^{2},\) either through conventional Fourier series or its generalized version.