模群转移算子多项式特征函数与Eichler上同调的同构
An isomorphism between polynomial eigenfunctions of the transfer operator and the Eichler cohomology for modular groups
摘要：
对于群PSL（2，Z），已知测地流的转移算子的多项式本征函数与模形式理论中的Eichler上同调之间存在同构。Chang和Mayer在最近的一篇论文中指出，对于PSL（2，Z）的某些子群，也存在这样的同构。我们证明了这一点，并提供了一些证据，通过计算机辅助代数计算，这样的同构存在于所有的主同余子群和所有的同余子群的Hecke型。
英文摘要：
For the group PSL(2,Z) it is known that there is an isomorphism between polynomial eigenfunctions of the transfer operator for the geodesic flow and the Eichler cohomology in the theory of modular forms. In a recent paper by Chang and Mayer it is indicated that such an isomorphism exists as well for certain subgroups of PSL(2,Z). We prove this and provide some evidence by computer aided algebraic calculations that such an isomorphism exists for all principal congruence subgroups and all congruence subgroups of Hecke type.
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。
