[1] Chern S S, Wolfson J G. Harmonic maps of the two-spheres in a complex Grassmann manifold[J]. Ann Math, 1987, 125: 301-335. [2] Chern S S, Wolfson J G. Minimal surfaces by moving frames[J]. Amer J Math, 1983, 105: 59-83. [3] Calabi E. Isometric embedding of complex manifolds[J]. Ann Math, 1953, 58: 1-23. [4] Bolton J, Jensen G R, Rigoli M, et al. On conformal minimal immersions of S2 into CPn[J]. Math Ann, 1988, 279: 599-620. [5] Jiao X X, Peng J G. Rigidity of holomorphic curves in complex Grassmann manifolds[J]. Math Ann, 2003, 327(3): 481-486. [6] Uhlenbeck K. Harmonic maps into Lie groups (classical solutions of the chiral model)[J]. J Diff Geom, 1989, 30: 1-50. [7] Jiao X X, Peng J G. Minimal 2-spheres in a complex projective space[J]. Diff Geom Appl, 2007, 25(5): 506-517. [8] Eells J, Wood J C. Harmonic maps of surfaces to complex projective spaces[J]. Adv Math, 1983, 49: 217-263. [9] Jiao X X, Peng J G. On some conformal minimal two-spheres in a complex projective space[J]. Quart J Math, 2010, 61(1): 87-101. [10] Chen H X, Jiao X X. Conformal minimal immersions of in [J]. J Graduate University of Chinese Academic of Sciences, 2008, 25(4): 452-459. |