Given a differential operator \(\mathcal{L}\) along with its own eigenvalue problem \(\mathcal{L}u = \lambda u\) and an associated algebraic equation \(\mathcal{L}^{(n)} \mathbf{u}_n = \lambda\mathbf{u}_n\) obtained by means of a discretization scheme (like Finite Differences, Finite Elements, Galerkin Isogeometric Analysis, etc.), the theory of Generalized Locally Toeplitz (GLT) sequences serves the... Show more

August 15, 2019

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Analysis of the spectral symbol function for spectral approximation of a differential operator

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