Deformation theory and the fundamental group in algebraic geometry.
Ph.D. thesis, M.I.T., May 1978.
Deformation theory and the tame fundamental group. Transactions
of the AMS, vol. 262 (1980), pp. 399-415.
Moduli of p-covers of curves, Communications in Algebra, 8 (12)
(1980), pp. 1095-1122.
Convergent arithmetic power series, Amer. J. Math., 106 (1984),
no. 4, pp. 801-846.
Ordinary and supersingular covers in characteristic p , Pacific
J. Math., 113 (1984) no. 2, pp. 349-363.
Mock covers and Galois extensions, Journal of Algebra, 91 (1984),
pp. 281-293.
Algebraic rings of arithmetic power series, Journal of Algebra,
91 (1984), pp. 294-319.
Hurwitz families and arithmetic Galois groups (with K. Coombes),
Duke Mathematical Journal, 52 (1985), pp. 821-839.
Galois coverings of the arithmetic line, in Number Theory: New
York, 1984-85. Springer LNM, vol. 1240 (1987), pp. 165-195.
Galois covers of an arithmetic surface, American Journal of
Mathematics, 110 (1988), no. 5, pp. 849-885.
Global approximation in dimension two (with J. Denef), Journal of
Algebra, 129 (1990), pp. 159-193.
Potential theory over local and global fields: I, Journal of
Algebra, 148 (1992), 337-383.
Potential theory over local and global fields: II, Journal of
Algebra, 148 (1992), 384-432.
Strong Bertini theorems, (with S. Diaz), Transactions of the AMS,
324 (1991), 73-86.
Every curve is a Hurwitz space (with S. Diaz and R. Donagi), Duke
Mathematical Journal, 59 (1989), pp. 737-746.
On purity of inertia, Proceedings of the AMS, 112 (1991), 311-319.
Arithmetic discriminants and horizontal intersections,
Mathematische Annalen, 291 (1991), 705-724.
Formal patching and adding branch points, American Journal of Mathematics,
115 (1993), 487-508.
Abhyankar's conjecture on Galois groups over curves, Inventiones Math.,
117 (1994), 1-25.
Galois groups with prescribed ramification, in "Proceedings of a
Conference on Arithmetic Geometry" (Arizona State Univ., 1993), AMS
Contemporary Mathematics Series, vol. 174, 1994, pp. 35-60.
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Fundamental groups and embedding problems in characteristic p, in
"Recent Developments in the Inverse Galois Problem" (M. Fried, et al,
eds.), AMS Contemporary Mathematics Series, vol. 186, 1995, pp.353-369.
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Fundamental groups of curves in characteristic p, in "Proceedings of the
International Congress of Mathematicians" (Zurich, 1994), Birkhauser,
1995, pp.656-666.
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Approximating Galois orbits of dessins (with L. Schneps), in "Geometric
Galois Actions", Volume I, London Mathematical Society Lecture Note
series, vol. 242, Cambridge University Press, 1997, pp.205-230.
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Fields of definition of p-adic covers (with P. Debes), Crelle's Journal,
vol. 498 (1998), 223-236.
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Patching and thickening problems (with K. Stevenson), J. Alg., vol. 212
(1999), 272-304.
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Embedding problems and adding branch points, in "Aspects of Galois
Theory", London Mathematical Society Lecture Note series, vol. 256,
Cambridge University Press, 1999, pp.119-143.
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