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Weierstrass Points on Rational Nodal Curves of Genus 3

Published online by Cambridge University Press:  20 November 2018

R. F. Lax
Affiliation:
Department of Mathematics Louisiana State University Baton Rouge, La 70803 U.S.A.
Carl Widland
Affiliation:
Department of Mathematics Indiana University at Kokomo Kokomo, IN 46901, U.S.A.
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Abstract

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We determine, except for one unsettled case, which combinations of Weierstrass weights can occur on irreducible rational nodal curves of arithmetic genus three. It is shown that the number of nonsingular Weierstrass points on such curves can be any integer between 0 and 6, except 1.

Keywords

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1987

References

1. Diaz, S., Exceptional Weierstrass points and the divisor on moduli space that they define, Memoirs Amer. Math. Soc. 56, No. 327, 1985.Google Scholar
2. Eisenbud, D. and Harris, J., Existence, decomposition, and limits of certain Weierstrass points, Inventiones Math. 87 (1987), pp. 495515.Google Scholar
3. Gunning, R.C., Lectures on Riemann Surfaces, Princeton University Press, Princeton, N.J. 1966.Google Scholar
4. Jenkins, M.A. and Traub, J.F., A three-stage variable-shift iteration of polynomial zeros and its relation to generalized Rayleigh iteration, Numer. Math. 14 (1970), pp. 252263.Google Scholar
5. Kleiman, S.L., r-special subschemes and an argument of Severi's, Advances in Math. 22 (1976), pp. 123.Google Scholar
6. Lax, R.F., Weierstrass points on rational nodal curves, Glasgow Math. J., 29 (1987), pp. 131 140.Google Scholar
7. Vermeulen, L., Weierstrass points of weight two on curves of genus three, Ph.D. dissertation, University of Amsterdam, 1983.Google Scholar
8. Widland, C., On Weierstrass points of Gorenstein curves, Ph.D. dissertation, Louisiana State University, 1984.Google Scholar