References
- P. Baird and J. C. Wood, Harmonic morphisms between Riemannian manifolds, London Mathematical Society Monographs. New Series, 29, The Clarendon Press, Oxford University Press, Oxford, 2003.
-
R. Caddeo, S. Montaldo, and C. Oniciuc, Biharmonic submanifolds of
$S^3$ , Internat. J. Math. 12 (2001), no. 8, 867-876. https://doi.org/10.1142/S0129167X01001027 - A. M. Cherif, M. Djaa, and K. Zegga, Stable f-harmonic maps on sphere, Commun. Korean Math. Soc. 30 (2015), no. 4, 471-479. https://doi.org/10.4134/CKMS.2015.30.4.471
- N. Course, f-harmonic maps which map the boundary of the domain to one point in the target, New York J. Math. 13 (2007), 423-435.
- M. Djaa, A. M. Cherif, K. Zagga, and S. Ouakkas, On the generalized of harmonic and bi-harmonic maps, Int. Electron. J. Geom. 5 (2012), no. 1, 90-100.
- J. Eells, Jr. and J. H. Sampson, Harmonic mappings of Riemannian manifolds, Amer. J. Math. 86 (1964), 109-160. https://doi.org/10.2307/2373037
- R. Howard and S. W. Wei, Nonexistence of stable harmonic maps to and from certain homogeneous spaces and submanifolds of Euclidean space, Trans. Amer. Math. Soc. 294 (1986), no. 1, 319-331. https://doi.org/10.1090/S0002-9947-1986-0819950-4
- Y. Ohnita, Stability of harmonic maps and standard minimal immersions, Tohoku Math. J. (2) 38 (1986), no. 2, 259-267. https://doi.org/10.2748/tmj/1178228492
- B. O'Neill, Semi-Riemannian Geometry, Pure and Applied Mathematics, 103, Academic Press, Inc., New York, 1983.
- S. Ouakkas, R. Nasri, and M. Djaa, On the f-harmonic and f-biharmonic maps, J. P. J. Geom. Topol. 10 (2010), no. 1, 11-27.
- Y. Xin, Geometry of Harmonic Maps, Progress in Nonlinear Differential Equations and their Applications, 23, Birkhauser Boston, Inc., Boston, MA, 1996.
- Y. L. Xin, Some results on stable harmonic maps, Duke Math. J. 47 (1980), no. 3, 609-613. https://doi.org/10.1215/S0012-7094-80-04736-5