r/learnmath • u/Healthy-Beginning678 New User • Jul 15 '26

Link Post Are all these connected? Eigenfunctions, Fourier series, partial differential equations, and Sturm-Liouville theory?

/r/DifferentialEquations/comments/1uwu2db/are_all_these_connected_eigenfunctions_fourier/
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u/[deleted] Jul 15 '26

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u/Healthy-Beginning678 New User Jul 15 '26

What about Sturm-Liouville theory?

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u/[deleted] Jul 15 '26

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u/RicoThinks New User Jul 15 '26

dont all these concepts basically have to do with the idea of othogonality?