TWO QUESTIONS ON LEVESQUE'S CYCLOTOMIC UNIT INDEX |
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作者姓名: | Feng Keqin |
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作者单位: | Dedicated to |
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摘 要: | C.Levesque raised two questions on the index of his independent cyelotomic unitsystem in the whole unit group of Zζ_n+ζ_n].In this paper it is shown that the firstquestion has affirmative answer for n=p~αand n=p~αq~β,the second question has affirmativeanswer for n=p~α,but has negative answer for n=p~αq~β
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收稿时间: | 1989/4/17 0:00:00 |
Two Questions on Levesque's Cyclotomic Unit Index |
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Institution: | Department of Mathematics, China University of Science and Technology, Hefei, Anhui, China |
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Abstract: | C. Levesque^3] raised two questions on the index of his independent cyclotomic unit system in the whole unit group of $Z\xi_n +\bar \xi_n\]$.In this paper it is shown that the first question has affirmative answer for n\equiv p^\alpha and n\equiv p^\alpha q^\beta, tho second question has affirmative answer for n\equiv p^\alpha, but has negative answer for n\equiv p^\alpha q^\beta. |
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