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Publication:3706018
zbMath0583.47025MaRDI QIDQ3706018
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Publication date: 1985
Full work available at URL: https://eudml.org/doc/34205
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eigenvalue with infinite multiplicityLaplace operator in a rectanglethe set of all eigenfunctions and of all adjoint functions for this problem forms a Riesz basis
Spaces of measurable functions ((L^p)-spaces, Orlicz spaces, Köthe function spaces, Lorentz spaces, rearrangement invariant spaces, ideal spaces, etc.) (46E30) General theory of partial differential operators (47F05) (Generalized) eigenfunction expansions of linear operators; rigged Hilbert spaces (47A70)
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