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Lower bounds for the first eigenvalue of the magnetic Laplacian
Auteur(s)
Savo, Alessandro
Date de parution
2018-5-17
In
Journal of Functional Analysis
Vol.
10
No
274
De la page
2818
A la page
2845
Résumé
We consider a Riemannian cylinder $\Omega$ endowed with a closed potential $1$-form $A$ and study the magnetic Laplacian $\Delta_A$ with magnetic Neumann boundary conditions associated with those data. We establish a sharp lower bound for the first eigenvalue and show that the equality characterizes the situation where the metric is a product. We then look at the case of a planar domain bounded by two closed curves and obtain an explicit lower bound in terms of the geometry of the domain. We finally discuss sharpness of this last estimate.
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Type de publication
journal article
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