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arXiv math/0608521math.NT
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三次指数和的对称幂的L函数

L-functions of symmetric powers of cubic exponential sums

C. Douglas Haessig

摘要:

对于每个正整数k,我们研究了与x^3 + λx的三次指数和族相关联的F晶体的k次对称幂上的L函数.探讨了它的合理性、定义域、次数、平凡因子、函数方程、牛顿多边形等问题。该文件基本上是自成一体的,由于显着的和有吸引力的性质德沃克的p-adic理论。本文的一个新的特点是扩展Dwork的有效分解理论时,k <p。这使得在相关的p-adic上同调显式计算。特别地,可以明确地研究Frobenius在(原始)上同调空间上的作用。

英文摘要:

For each positive integer k, we investigate the L-function attached to the k-th symmetric power of the F-crystal associated to the family of cubic exponential sums of x^3 + λx. We explore its rationality, field of definition, degree, trivial factors, functional equation, and Newton polygon. The paper is essentially self-contained, due to the remarkable and attractive nature of Dwork's p-adic theory. A novel feature of this paper is an extension of Dwork's effective decomposition theory when k < p. This allows for explicit computations in the associated p-adic cohomology. In particular, the action of Frobenius on the (primitive) cohomology spaces may be explicitly studied.

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。

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