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Special values of L-series attached to two families of CM elliptic curves

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【作者】 邱德荣张贤科

【Author】 QIU Derong and ZHANG XiankeCenter for Advanced Study, Tsinghua University, Beijing 100084, China; Department of Mathematical Sciences, Tsinghua University, Beijing 100084, China

【机构】 Center for Advanced Study, Tsinghua University, Beijing 100084, China,Department of Mathematical Sciences, Tsinghua University, Beijing 100084, China

【摘要】 <正> Consider two families of elliptic curves y2=x3-D1x and y2=x3-2433D22 over fields and respectively. Formulae expressed by Weierstrass (?)functions are given for special values of Hecke L-se-ries attached to such elliptic curves. The lower bounds of 2-adic and 3-adic valuations of these values of Hecke L-series as well as criteria for reaching these bounds are obtained. These results are consistent with the predictions of the conjecture of Birch and Swinnerton-Dyer; and some results in recent literature for more special case and for 2-adic valuation are also developed.

【Abstract】 Consider two families of elliptic curves y2=x3-D1x and y2=x3-2433D22 over fields and respectively. Formulae expressed by Weierstrass (?)functions are given for special values of Hecke L-se-ries attached to such elliptic curves. The lower bounds of 2-adic and 3-adic valuations of these values of Hecke L-series as well as criteria for reaching these bounds are obtained. These results are consistent with the predictions of the conjecture of Birch and Swinnerton-Dyer; and some results in recent literature for more special case and for 2-adic valuation are also developed.

【基金】 Project supported by the National Natural Science Foundation of China (Grant No. 19771052).
  • 【文献出处】 Progress in Natural Science ,自然科学进展(英文版) , 编辑部邮箱 ,2001年11期
  • 【分类号】O182
  • 【被引频次】2
  • 【下载频次】33
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