一类三次Thue方程的解与最简三次域的同构类的对应
On correspondence between solutions of a family of cubic Thue equations and isomorphism classes of the simplest cubic fields
摘要：
令$m\geq -1$为整数。给出了三次Thue方程\[ X^3-mX^2Y-(m+3)XY^2-Y^3=λ\]的参数族整数解与最简单三次域的同构类之间的对应关系，其中$λ>0$是$m^2+3m+9$的因子.通过通信和R. Okazaki的结果，我们确定了Thue方程对于$m^2+3m+9$的正因子$λ$的66个非平凡解。作为结果，我们得到冈崎定理的另一个证明，该定理断言最简单的三次域是不同构的，除了$m=-1,0,1,2,3,5,12,54,66,1259,2389$。
英文摘要：
Let $m\geq -1$ be an integer. We give a correspondence between integer solutions to the parametric family of cubic Thue equations \[ X^3-mX^2Y-(m+3)XY^2-Y^3=λ\] where $λ>0$ is a divisor of $m^2+3m+9$ and isomorphism classes of the simplest cubic fields. By the correspondence and R. Okazaki's result, we determine the exactly 66 non-trivial solutions to the Thue equations for positive divisors $λ$ of $m^2+3m+9$. As a consequence, we obtain another proof of Okazaki's theorem which asserts that the simplest cubic fields are non-isomorphic to each other except for $m=-1,0,1,2,3,5,12,54,66,1259,2389$.
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