承认试验性但不承认对偶性的地图
Maps admitting trialities but not dualities
摘要：
我们利用群论在曲面上构造无限族的映射，这些映射在Wilson的3阶映射操作下不变，但在2阶操作下不变，如对偶和Petrie对偶。
英文摘要：
We use group theory to construct infinite families of maps on surfaces which are invariant under Wilson's map operations of order 3 but not under the operations of order 2, such as duality and Petrie duality.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
