English
Related papers

Related papers: A Note on an Asymptotically Good Tame Tower

200 papers

In this work, we give sufficient conditions in order to have finite ramification locus in sequences of function fields defined by different kind of Kummer extensions. These conditions can be easily implemented in a computer to generate…

Number Theory · Mathematics 2014-12-01 Maria Chara , Ricardo Toledano

This paper concerns towers of curves over a finite field with many rational points, following Garcia--Stichtenoth and Elkies. We present a new method to produce such towers. A key ingredient is the study of algebraic solutions to Fuchsian…

Number Theory · Mathematics 2007-05-23 Peter Beelen , Irene I. Bouw

We study a tower of function fields of Artin-Schreier type over a finite field with $2^s$ elements. The study of the asymptotic behavior of this tower was left as an open problem by Beelen, Garc\'ia and Stichtenoth in $2006$. We prove that…

Number Theory · Mathematics 2016-11-23 M. Chara , H. Navarro , R. Toledano

In this paper we study general conditions to prove the infiniteness of the genus of certain towers of function fields over a perfect field. We show that many known examples of towers with infinite genus are particular cases of these…

Number Theory · Mathematics 2016-03-11 M. Chara , R Toledano

In this work, we use the notion of ``symmetry'' of functions for an extension $K/L$ of finite fields to produce extensions of a function field $F/K$ in which almost all places of degree one split completely. Then we introduce the notion of…

Number Theory · Mathematics 2007-07-16 Vinay Deolalikar

In this article we investigate the automorphism group of an asymptotically optimal tower of function fields introduced by Garcia and Stichtenoth. In particular we provide a detailed description of the decomposition group of some rational…

Number Theory · Mathematics 2013-04-09 Thorsten Lagemann

We give effective bounds for the class number of any algebraic function field of genus $g$ defined over a finite field. These bounds depend on the possibly partial information on the number of places on each degree $\leq g$. Such bounds are…

Algebraic Geometry · Mathematics 2013-03-26 Stéphane Ballet , Robert Rolland , Seher Tutdere

In this paper we construct Galois towers with good asymptotic properties over any non-prime finite field $\mathbb F_{\ell}$; i.e., we construct sequences of function fields $\mathcal{N}=(N_1 \subset N_2 \subset \cdots)$ over $\mathbb…

Algebraic Geometry · Mathematics 2013-11-08 Alp Bassa , Peter Beelen , Arnaldo Garcia , Henning Stichtenoth

Recently Bassa, Garcia and Stichtenoth constructed a tower of function fields over GF(q^3) having many rational places relative to their genera. We show that, by removing the bottom field from this tower, we obtain the same tower we would…

Number Theory · Mathematics 2009-06-01 Michael E. Zieve

In this paper we initiate the study of the class of cubic Kummer type towers considered by Garcia, Stichtenoth and Thomas in 1997 by classifying the asymptotically good ones in this class.

Number Theory · Mathematics 2016-03-11 M. Chara , R Toledano

We consider a tower of function fields F_0 < F_1 < ... over a finite field such that every place of every F_i ramified in the tower and the sequence genus(F_i)/[F_i:F_0] has a finite limit. We also construct a tower in which every place…

Number Theory · Mathematics 2008-10-17 Iwan Duursma , Bjorn Poonen , Michael Zieve

We present a simple method to establish the existence of asymptotically good sequences of iso-dual AG-codes. A key advantage of our approach, beyond its simplicity, is its flexibility, allowing it to be applied to a wide range of towers of…

Number Theory · Mathematics 2025-03-13 María Chara , Ricardo Podestá , Luciane Quoos , Ricardo Toledano

We construct an explicit asymptotically good tower of curves over the field with eight elements. Its limit is 3/2.

Algebraic Geometry · Mathematics 2007-05-23 Gerard van der Geer , Marcel van der Vlugt

In a previous work general conditions were given to prove the infiniteness of the genus of certain towers of function fields over a perfect field. It was shown that many examples where particular cases of those general results. In this…

Number Theory · Mathematics 2025-01-22 Maria Chara , Ricardo Toledano

We propose a systematic method to produce potentially good recursive towers over finite fields. The graph point of view, so as some magma and sage computations are used in this process. We also establish some theoretical functional…

Number Theory · Mathematics 2015-03-24 Emmanuel Hallouin , Marc Perret

Up until now, it was recognized that a large number of 2-torsion points was a technical barrier to improve the bounds for the symmetric tensor rank of multiplication in every extension of any finite field. In this paper, we show that there…

Algebraic Geometry · Mathematics 2014-09-12 Stéphane Ballet , Julia Pieltant

Over all non-prime finite fields, we construct some recursive towers of function fields with many rational places. Thus we obtain a substantial improvement on all known lower bounds for Ihara's quantity $A(\ell)$, for $\ell = p^n$ with $p$…

Algebraic Geometry · Mathematics 2013-05-21 Alp Bassa , Peter Beelen , Arnaldo Garcia , Henning Stichtenoth

We give a new way to study recursive towers of curves over a finite field, defined from a bottom curve $\Cun$ and a correspondence $\Cdeux$ on $\Cun$.In particular, we study their asymptotic behavior. A close examination of singularities…

Number Theory · Mathematics 2014-03-19 Emmanuel Hallouin , Marc Perret

Certain towers of function fields with complete splitting of rational places at each stage are constructed. Also, families oof towers with positive N/g ratios are described.

Number Theory · Mathematics 2007-05-23 Vinay Deolalikar

In this work we construct sequences of locally recoverable AG codes arising from a tower of function fields and give bound for the parameters of the obtained codes. In a particular case of a tower over $\mathbb{F}_{q^2}$ for any odd $q$,…

Information Theory · Computer Science 2022-09-16 M. Chara , F. Galluccio , E. Martínez-Moro
‹ Prev 1 2 3 10 Next ›