Publications and Preprints
Preprint
On the isometric immersions of
Kaehler manifolds of nonnegative isotropic curvature.
(with F. Mercuri)
Publications
-
Conformally flat immersions in codimension
two, Geometriae Dedicata, vol. 23 (1987), 115 - 130.
- (with Y. Baldin)
Some complete manifolds with non-negative curvature operator,
Math. Zeitschrift., vol. 195 (1987), 383 - 390.
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Conformally flat immersions and flatness of the normal connection, Pacific
J. of Math., vol. 195 (1989), 145 - 150.
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Codimension
two complete non-compact submanifolds with nonnegative curvature,
Trans. Amer. Math. Soc., vol. 311 (1989), 739 -
748.
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(with
A. Derdzinski and F.Mercuri) Manifolds with pure nonnegative curvature operator,
Boletim da Sociedade Brasileira de Matematica, vol.
18 (1987), 13 - 22.
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A splitting theorem for complete
manifolds with nonnegative curvature operator, Proc. Amer. Math. Soc., vol. 105 (1989), 979 - 985.
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(with Y. Baldin) Codimension
two product submanifolds with non-negative curvature,
Note di Matematica (Italy), Vol.IX, 1 (1989), 463 - 469.
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(with J.D. Moore ) Isometric Immersions with congruent Gauss maps,
Proc. Amer. Math. Soc., vol. 110 (1990), 463 -
469.
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Nonnegatively curved submanifolds in codimension two,
Trans. Amer. Math. Soc., vol. (1992), 351 -
364.
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A note on the first Betti number of submanifolds of
nonnegative Ricci curvature in codimension two, Manuscripta Math., vol. 73
(1991), 335 - 339.
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Some compact conformally flat manifolds with
nonnegative scalar curvature, Geometriae Dedicata, vol. 47 (1993), 155 -
168.
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Self-duality and four-manifolds with nonnegative curvature
on totally isotropic two-planes, Michigan Math. Journal, vol. 41 (1994),
3 - 12.
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(with F. Mercuri) On the topology of complete Riemannian manifolds with
nonnegative curvature operator, Rendiconti seminario
Facolta Scienze Universita Cagliari (Italy), Vol.63, (2) (1993), 1 -
23.
-
Some results on the topology of four-manifolds with
nonnegative curvature, Illinois J. of Math., vol. 40 (1996),
390 - 401.
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(with F. Mercuri) Low codimensional submanifolds with nonnegative
isotropic curvature Trans. Amer. Math. Soc., vol. (1996) 2711 - 2724.
-
Some results
on nonnegatively curved four manifolds, Matematica Contemporanea, vol. 9
(1995), 153 - 175.
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(with A.Asperti and Helvecio de Castro) Compact homogeneous Einstein manifolds in
codimension two, Note di
Matematica (Italy) Vol. 6, (1) (1996), 9-19.
- (with A. Asperti and F.
Mercuri)
Cohomogeneity
one manifolds and hypersurfaces of revolution, Bolletino della Unione Matematica Italiana (7) 11-B
(1997),199 -215.
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Positively curved 4-manifolds and the
nonnegativity of the isotropic curvatures, Michigan Math. J., vol. 44,
(1997), 211 - 229.
- (with F.Mercuri)
Conformal flatness, cohomogeneity one and
hypersurfaces of revolution, Differential Geometry and
its Applications, vol. 9 (1998) 243-249.
- (with Helvecio de Castro)
Homogeneous
submanifolds of codimension two, Geometriae
Dedicata, vol. 78 (1999) 89-110.
- (with Helvecio de Castro)
Homogeneous manifolds in
codimension two revisited, Note di
Matematica, vol. 21, n. 1, (2002), 49-57.
- (with Martha Dussan)
Manifolds with 2-nonnegative Ricci operator,
Pacific J. of Math. , vol. 204, No 2, (2002), 319 -
334.
- (with Helvecio de Castro)
Codimension two homogeneous submanifolds of Space Forms,
Note di Matematica vol. 21, n. 2, (2003), 83-109.
- (with Martha Dussan)
Compact manifolds of nonnegative
isotropic curvature and pure curvature tensor,
Balkan Journal of Geometry and its Applications. vol. 10, n. 2, (2005).