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ANTS
2008
Springer
115views Algorithms» more  ANTS 2008»
14 years 2 months ago
Abelian Varieties with Prescribed Embedding Degree
We present an algorithm that, on input of a CM-field K, an integer k 1, and a prime r 1 mod k, constructs a q-Weil number OK corresponding to an ordinary, simple abelian variety ...
David Freeman, Peter Stevenhagen, Marco Streng
ANTS
2008
Springer
106views Algorithms» more  ANTS 2008»
14 years 2 months ago
Computing in Component Groups of Elliptic Curves
Let K be a p-adic local field and E an elliptic curve defined over K. The component group of E is the group E(K)/E0(K), where E0(K) denotes the subgroup of points of good reduction...
J. E. Cremona
ANTS
2008
Springer
57views Algorithms» more  ANTS 2008»
14 years 2 months ago
Functorial Properties of Stark Units in Multiquadratic Extensions
Abstract. The goal of this paper is to present computations investigating the "functorial" properties of Stark units, that is, how specific roots of Stark units from cert...
Jonathan W. Sands, Brett A. Tangedal
ANTS
2008
Springer
99views Algorithms» more  ANTS 2008»
14 years 2 months ago
Point Counting on Singular Hypersurfaces
We discuss how one can extend to hypersurfaces with isolated singularities the methods of Gerkmann, Abbott-Kedlaya-Roe and Lauder for counting points on smooth hypersurfaces.
Remke Kloosterman
ANTS
2008
Springer
70views Algorithms» more  ANTS 2008»
14 years 2 months ago
Tabulation of Cubic Function Fields with Imaginary and Unusual Hessian
Pieter Rozenhart, Renate Scheidler
ANTS
2008
Springer
108views Algorithms» more  ANTS 2008»
14 years 2 months ago
Some Improvements to 4-Descent on an Elliptic Curve
The theory of 4-descent on elliptic curves has been developed in the PhD theses of Siksek [18], Womack [21] and Stamminger [20]. Prompted by our use of 4-descent in the search for ...
Tom Fisher
ANTS
2008
Springer
73views Algorithms» more  ANTS 2008»
14 years 2 months ago
K3 Surfaces of Picard Rank One and Degree Two
We construct explicit examples of K3 surfaces over
Andreas-Stephan Elsenhans, Jörg Jahnel