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The spectral geometry of the higher order Laplacian. (English) Zbl 0448.58026

MSC:
58J50 Spectral problems; spectral geometry; scattering theory on manifolds
58C40 Spectral theory; eigenvalue problems on manifolds
58J35 Heat and other parabolic equation methods for PDEs on manifolds
58J70 Invariance and symmetry properties for PDEs on manifolds
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