摘要 : Let p ≡ 3 ... 展开 Let p ≡ 3 ( mod 4 ) {p\equiv 3\pmod{4}} and l ≡ 5 ( mod 8 ) {l\equiv 5\pmod{8}} be different primes such that p l = 1 {\frac{p}{l}=1} and 2 p = p l 4 {\frac{2}{p}=\frac{p}{l}_{4}} . Put k = ? ? ( l ) {k=\mathbb{Q}(\sqrt{l})} , and denote by ? its fundamental unit. Set K = k ? ( - 2 ? p ? ? ? l 收起