Abstract
We characterize both invariant and totally real immersions into the quaternionic projective space by the spectra of the Jacobi operator. Also, we study spectral characterization of harmonic submersions when the target manifold is the quaternionic projective space.
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Kang, T.H., Pak, J.S. On the spectral geometry for the Jacobi operators of harmonic maps into a quaternionic projective space. Geom Dedicata 60, 153–161 (1996). https://doi.org/10.1007/BF00160620
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DOI: https://doi.org/10.1007/BF00160620