Harmonic morphisms of warped product type from Einstein manifolds

Autores: Hassan Azad, T. Mustafa
Localización: Archiv der Mathematik, ISSN 0003-889X, Vol. 88, Nº. 4, 2007, págs. 368-377
Idioma: inglés
DOI: 10.1007/s00013-006-1941-1
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Resumen
- Weitzenböck type identities for harmonic morphisms of warped product type are developed which lead to some necessary conditions for their existence. These necessary conditions are further studied to obtain many nonexistence results for harmonic morphisms of warped product type from Einstein manifolds.