关于实二次域类数的上下界 |
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引用本文: | 乐茂华.关于实二次域类数的上下界[J].数学学报,1994,37(5):695-701. |
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作者姓名: | 乐茂华 |
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作者单位: | 湖南师范大学数学系 |
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摘 要: | 设D是无平方因子正整数,Δ,h,ε分别是实二次的判别式、类数和基本单位数,本文运用初等方法证明了:(i)在假定广义Riemann猜想成立的条件下,当Δ>10 ̄9时,(ii)当D=p,p是奇素数时,
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关 键 词: | 实二次域,类数,基本单位数,上、下界 |
收稿时间: | 1992-6-2 |
修稿时间: | 1993-10-5 |
On the Bounds for Class Numbers of Real Quadratic Ficlds |
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Institution: | Le Maohua(Department of Mathematics, Hunan Normal University,ChangSha 410081, China) |
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Abstract: | Let D be a positive integer with square free,and let Δ,h、εdenote the discriminant,the class number and the fundamental unit of()respectively.In this paper,by someelementary methods,the author proves the following resuIts:(i)Under the generalized Riemannhypothesis,ifΔ>10 ̄9,then h >/9.794(logΔ)(logε).(ii) If D =p,wherep is an odd prime,then h /2]。 |
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Keywords: | real quadratic field class number fundamental unit upper bound and Iower bound |
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