Erd■s一个猜想的注记 |
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引用本文: | 吴昌玖,王鹏飞. Erd■s一个猜想的注记[J]. 成都大学学报(自然科学版), 1994, 0(2) |
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作者姓名: | 吴昌玖 王鹏飞 |
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作者单位: | 万县师专,成都大学 |
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摘 要: | 当k≥2,2kn+1=qh,q≡-1(mod2k),丢番图方程4/n=x-1十y-1+z-1有正整数解;当方程中n换以素数P,则P存疑的条件是Legendre符号有(P/3)=(P/5)=(P/7)=(P/11)=(P/13)=(P/17)=1.
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关 键 词: | Erd s猜想,同余,Legengre符号,平方剩余 |
Remarks on a Conjecture of Erd■s |
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Abstract: | In this note,we hsve proved the following Theorem 1 Let k≥s,and 2kn+1=qh, q=-1, (mod2k ). Then Diophantine equation 4/n =1/x+1 /y +1/z is soluable in positive integers x, y, z.Theorem 2 The condition that Diophantine equation 4/p=1/x+1/y+1/z (p is a primenumber) has indeterminable soluable is (p/3)= (P/5) =(P/7 )= (P/9)= (P/13 )= (P/17 )= 1. |
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