Publications

Deformation of finite morphisms and smoothing of ropes on curves -with F. J. Gallego and M. Gonzalez (to appear in Compositio Mathematica)

K3 double structures on Enriques surfaces and their smoothings. - with F. J. Gallego and M. Gonzalez (to appear in Journal of Pure and Applied Algebra)

Classification of Quadruple Galois Canonical Covers I. - with F. J. Gallego (to appear in Transactions of the American Math Soc)

Classification of Quadruple Galois Canonical Covers II. - with F. J. Gallego (Journal of Algebra, 312, 2007, 798-828.)

Some results on Surfaces of General type. - (Canadian Journal of Mathematics, Vol 57 (4), 2005, 724-749.)

Classification of Quadruple Canonical Covers: Galois Case. - with F. J. Gallego (Comptes Rendus mathematiques de l’ Academie des sciences, The Royal Society of Canada, 26, no. 7, 45-50, 2004.)

On the Canonical Ring of Covers of Surfaces of Minimal degree. - with F. J. Gallego  (Transactions of American Mathematical Society, 355, no. 7, 2715-2732, 2003.)

Geometry of Canonical Covers with applications to Calabi-Yau Threefolds.- (Vector Bundles and Representation theory. Editors: Dale Cutkosky, Dan Edidin, Zhenbo Qin and Qi Zhang, Contemporary Mathematics, American Mathematical Society, Vol 322, 107-124, 2003.)

Triple Canonical Covers of Varieties of Minimal Degree. - with F. J. Gallego  (Contributions in Geometry and Representation Theory. Editors: V.Lakshmibai et al, Birkahuser/Hindustan Publ, 241-270, 2003.)

Cancellation of Projective Modules and Complete Intersections. - with Satya Mandal (Journal of Ramanujan Math. Society, 18, 77-85, no.1, 2003.)

Some Homogeneous Rings associated to Finite Morphisms. - with F. J. Gallego (Advances in Algebra and Geometry, Editor: C. Musili, Hindustan/ American Mathematical Society, 159-169, 2002.)

Some Results on Rational Surfaces and Fano Varieties. - with F. J. Gallego (Journal fur reine und angewandte Mathematik, 538, 25-55, 2001.)

Vanishing Theorems and Syzygies for K3 and Fano Varieties. - with F. J. Gallego (Journal of Pure and Applied Algebra, 146, 251-265, 2000.)

Erratum to: Projective Normality and Syzygies of Algebraic Surfaces. - with F. J. Gallego (Journal fur reine und angewandte Mathematik, 523, 233-234, 2000.) 

Projective Normality and Syzygies of Algebraic Surfaces. - with F. J. Gallego (Journal fur reine und angewandte Mathematik, 506, 145-180, 1999.)

Syzygies of Projective Surfaces: An Overview. - with F. J. Gallego (Journal of Ramanujam Math. Soc., 14, no 1, 145-180, 1999.)

Very Ampleness and Higher Syzygies for Calabi-Yau Threefolds. - with F. J. Gallego (Mathematische Annalen, 312, 133-149, 1998.)

Canonical Ring of a Curve is Koszul: A Simple Proof.  - with G. Pareschi (Illinois Journal of Mathematics, 41, no.2, 266-271, 1997.)

Degenerations of K3 Surfaces in Projective Space. - with F. J. Gallego (Transactions of American Mathematical Society, 349, 2477-2492, June 1997.) 

Higher Syzygies of Elliptic Ruled Surfaces. - with F. J. Gallego (Journal of Algebra, 186, no 2, 626-659, 1996.)

Normal Presentation on Elliptic Ruled Surfaces. - with F. J. Gallego (Journal of Algebra, 186, no 2, 597-625, 1996.)