On the left, at the Great Wall near Beijing in 2002. On the right, playing Chopin in the summer of 2007. |

1971 "Isometric immersions of Riemannian products", J. Differential Geometry v. 5, pp. 159--168.

1972 "Isometric immersions of space forms in space forms", Pacific J. Math. v. 40, pp. 157--166.

1973 "The Cartan-Janet theorem for conformal imbeddings" (with Howard Jacobowitz), Indiana Univ. Math. J. v. 23, pp. 187--203.

1975 "An application of second variation to submanifold theory", Duke Math. J. v. 42, pp. 191--193.

1977 "Conformally flat submanifolds of Euclidean space", Math. Ann. v. 225, pp. 89--97.

1977 "Submanifolds of constant positive curvature I", Duke Math. J. v. 44, pp. 449--484.

1978 "Codimension two submanifolds of positive curvature", Proc. Amer. Math. Soc. v. 70, pp. 72--74.

1978 "Normal characteristic forms: conformal invariance and duality", (with James White) Math. Z. v. 164, pp. 125--141.

1980 "On equivariant isometric embeddings" (with Roger Schlafly), Math. Z. v. 173, pp. 125--141.

1985 "On stability of minimal spheres and a two-dimensional version of Synge's theorem", Arch. Math. v. 44, pp. 278--281.

1985 "Minimal disks and compact hypersurfaces in Euclidean space" (with Thomas Schulte), Proc. Amer. Math. Soc. v. 94, 321--328.

1986 "Compact Riemannian manifolds with positive curvature operators", Bull. Amer. Math. Soc. v. 14, pp. 279--282.

1988 "Minimal two-spheres and the topology of manifolds with positive curvature on totally isotropic two-planes" (with Mario Micallef), Annals of Math. v. 127, pp. 199--227.

1990 "On the number of minimal two-spheres of small area in manifolds with curvature bounded above", Math. Ann. v. 288, pp. 323--343.

1996 "On extendability of isometric immersions of spheres", Duke Math. J. v. 85, pp. 685--699.

2001 "Lectures on Seiberg-Witten invariants", second edition, Springer, New York.

2002 "Euler characters and submanifolds of constant positive curvature", Trans. Amer. Math. Soc. v. 354, pp. 3815--3834.

2002 "Problems in the geometry of submanifolds", Mat. Fiz. Anal. Geom. v. 9, pp. 648-662.

2006 "Bumpy metrics and closed parametrized minimal surfaces in Riemannian manifolds", Trans. Amer. Math. Soc. v. 358, pp. 5193--5256.

2007 "Nondegeneracy of coverings of minimal tori and Klein bottles in Riemannian manifolds", Pacific J. Math. v. 230, pp. 147--166.

2007 "Second variation of energy for minimal surfaces in Riemannian manifolds", Matematica Contemporanea v. 33, pp. 213--241.

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