Critical set of eigenfunctions of the Laplacian
classification
🧮 math.DG
math.AP
keywords
eigenfunctionscriticallaplaciananaloganalyticboundcompactdimensional
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We give an upper bound for the $(n-1)$-dimensional Hausdorff measure of the critical set of eigenfunctions of the Laplacian on compact analytic Riemannian manifolds. This is the analog of H. Donnely and C. Fefferman result on nodal set of eigenfunctions.
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