|
Determining the small solutions to -unit equations
Author(s):
N.
P.
Smart.
Journal:
Math. Comp.
68
(1999),
1687-1699.
MSC (1991):
Primary 11Y50, 11D61
Posted:
March 11, 1999
Retrieve article in:
PDF
This article is available free of charge
Abstract |
References |
Similar articles |
Additional information
Abstract:
In this paper we generalize the method of Wildanger for finding small solutions to unit equations to the case of -unit equations. The method uses a minor generalization of the LLL based techniques used to reduce the bounds derived from transcendence theory, followed by an enumeration strategy based on the Fincke-Pohst algorithm. The method used reduces the computing time needed from MIPS years down to minutes.
References:
- 1.
- J. Buchmann, M. Jacobson, and E. Teske. On some computational problems in finite abelian groups. Math. Comp., 66:1663-1687, 1997. MR 98a:11185
- 2.
- U. Fincke and M. Pohst. Improved methods for calculating vectors of short length in a lattice, including a complexity analysis. Math. Comp., 44:463-471, 1985. MR 86e:11050
- 3.
- K. Gy\H{o}ry. On the number of solutions of linear equations in units of an algebraic number field. Comment. Math. Helvetici, 54:585-600, 1979. MR 81g:11031
- 4.
- N.P. Smart. The solution of triangularly connected decomposable form equations. Math. Comp., 64:819-840, 1995. MR 95f:11110
- 5.
- N.P. Smart. S-unit equations, binary forms and curves of genus 2. Proc. London Math. Soc., 75:271-307, 1997. MR 98d:11072
- 6.
- E. Teske. A space efficient algorithm for group structure computation. Math. Comp., 67:1637-1663, 1998. MR 99a:11146
- 7.
- N. Tzanakis and B.M.M. de Weger. How to explicitly solve a Thue-Mahler equation. Compositio Math., 84:223-288, 1992; 89 (1993), 241-242. MR 93k:11025; MR 95a:11030
- 8.
- B.M.M. de Weger. Solving exponential diophantine equations using lattice basis reduction algorithms. J. Number Theory, 26:325-367, 1987; 31 (1989), 88-89. MR 88k:11097; MR 90a:11040
- 9.
- B.M.M. de Weger. Algorithms for Diophantine Equations. Centre for Mathematics and Computer Science Amsterdam, 1989. CWI-Tract 65. MR 90m:11205
- 10.
- K. Wildanger. Über das Lösen von Einheiten- und Indexformgleichungen in algebraischen Zahlkörpern mit einer Anwendung auf die Bestimmung aller ganzen Punkte einer Mordellschen Kurve. PhD thesis, Technischen Universität Berlin, 1997.
Similar Articles:
Retrieve articles in Mathematics of Computation
with MSC
(1991):
11Y50, 11D61
Retrieve articles in all Journals with MSC
(1991):
11Y50, 11D61
Additional Information:
N.
P.
Smart
Affiliation:
Hewlett-Packard Laboratories, Filton Road, Stoke Gifford, Bristol, BS12 6QZ, U.K.
Email:
nsma@hplb.hpl.hp.com
DOI:
10.1090/S0025-5718-99-01140-0
PII:
S 0025-5718(99)01140-0
Keywords:
$S$-unit equations
Received by editor(s):
December 1, 1997
Posted:
March 11, 1999
Copyright of article:
Copyright
1999,
American Mathematical Society
|