特徵值為二之二次函數體的算術性質; The Arithmetic of Quadratic Function Fields in Characteristic Two

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/45316

Title:	特徵值為二之二次函數體的算術性質;The Arithmetic of Quadratic Function Fields in Characteristic Two
Authors:	陳燕美
Contributors:	數學系
Keywords:	數體;函數體;Artin-Schreier擴張;理想類數;平均值;number fields;function fields;Artin-Schreier extension;class numbers;average value;數學類
Date:	2007-07-01
Issue Date:	2010-12-21 17:26:05 (UTC+8)
Publisher:	行政院國家科學委員會
Abstract:	有關二次數體的研究成果相當豐富，其中大部分均可推廣至特徵值為奇質數的二次函數體。至於特徵值為2的二次函數體(被稱為Artin-Schreier擴張)則較為獨特。在本計畫中我們想要深入地研究這些特徵值為2的二次函數體的算術性質，尤其是其理想類數的平均值問題。理想類數的平均值的研究可以追溯到Gauss的時候。對於這個問題，他提出二個猜想，均已被證明。在1990年代，Hoffstein 和 Rosen 考慮特徵值為奇質數的函數體上類推的問題。我們希望考慮，特徵值為2時的情況。 There are plenty results about quadratic number fields. Most of them can be generalized to the case of function fields in odd characteristic. For the particular case of characteristic two, it is called an Artin-Schreier extension. In this project, we would like to study the arithmetic of quadratic function fields in characteristic two. Especially we are interested in the average value problem. The study of the average value of class numbers of quadratic number fields can be dated back to Gauss. He proposed two conjectures on this problem, both have been proved. In 1990』s, Hoffstein and Rosen considered the analogue of function fields of odd characteristic. We will consider the case of characteristic two. 研究期間：9508 ~ 9607
Relation:	財團法人國家實驗研究院科技政策研究與資訊中心
Appears in Collections:	[Department of Mathematics] Research Project

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