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Lower bounds for the first Laplacian eigenvalue of geodesic balls of spherically symmetric manifolds

Cleon S. Barroso, Federal do Ceara


We obtain lower bounds for the first Laplacian eigenvalues of geodesic balls of spherically symmetric manifolds. These lower bounds are only C0 dependent on the metric coefficients.


First eigenvalue, lower bounds, elliptic equations, fixed pointss

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