Almost harmonic spinors
classification
🧮 math.DG
keywords
diracadmitsalmostapplicationclosedcompareconformaldiffeomorphic
read the original abstract
We show that any closed spin manifold not diffeomorphic to the two-sphere admits a sequence of volume-one-Riemannian metrics for which the smallest non-zero Dirac eigenvalue tends to zero. As an application, we compare the Dirac spectrum with the conformal volume.
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