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Can a self-adjoint operator have a continuous set of eigenvalues?
3
What does Gibbs phenomenon shows the nature of Fourier Series
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The characteristic (indicator) function of a set is not in the Sobolev space H1
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When is Sobolev space a subset of the continuous functions?
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Embedding of BV and L^P spaces
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Functionals continuous with respect to weak convergence
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A question on weak derivative - Sobolev spaces