Marcos Petrúcio Cavalcante, Darlan Ferreira de Oliveira
Let M be a compact constant mean curvature surface either in S3 or R3. In this paper we prove that the stability index of M is bounded from below by a linear function of the genus. As a by-product we obtain a comparison theorem between the spectrum of the Jacobi operator of M and those of Hodge Laplacian of 1-forms on M.
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