[1] Baird P.:
Harmonic maps with symmetry, harmonic morphisms and deformation of metrics. Pitman Books Limited, Boston, MA, 1983, pp. 27–39.
MR 0716320
[3] Baird P., Wood J.C.:
Harmonic Morphisms between Riemannian Manifolds. London Mathematical Society Monographs, 29, Oxford University Press, Oxford, 2003.
MR 2044031 |
Zbl 1055.53049
[6] Balmus A.:
Biharmonic properties and conformal changes. An. Stiint. Univ. Al. I. Cuza Iasi Mat. (N.S.) 50 (2004), 361–372.
MR 2131943 |
Zbl 1070.58016
[8] Bertola M., Gouthier D.:
Lie triple systems and warped products. Rend. Mat. Appl. (7) 21 (2001), 275–293.
MR 1884948 |
Zbl 1057.53020
[11] Eells J., Lemaire L.:
Selected Topics in Harmonic Maps. CNMS Regional Conference Series of the National Sciences Foundation, November 1981.
MR 0703510 |
Zbl 0515.58011
[12] Eells J., Ratto A.:
Harmonic Maps and Minimal Immersions with Symmetries. Princeton University Press, Princeton, NJ, 1993.
MR 1242555 |
Zbl 0783.58003
[13] Jiang G.Y.:
$2$-harmonic maps and their first and second variational formulas. Chinese Ann. Math. Ser. A 7 (1986), 389–402.
MR 0886529 |
Zbl 1200.58015
[14] Djaa N.E.H., Boulal A., Zagane A.:
Generalized warped product manifolds and biharmonic maps. Acta Math. Univ. Comenian. 81 (2012), no. 2, 283–298.
MR 2975295 |
Zbl 1274.53093
[15] Lu W.J.: Geometry of warped product manifolds and its five applications. PhD Thesis, Zhejiang University, 2013.
[20] Perktas S.Y., Kilic E.:
Biharmonic maps between doubly warped product manifolds. Balkan J. Geom. Appl. 15 (2010), no. 2, 159–170.
MR 2608547 |
Zbl 1225.58008