Computing Zeta Functions of Cyclic Covers in Large Characteristic
arXiv: Number Theory(2018)
Abstract
describe an algorithm to compute the zeta function of a cyclic cover of the projective line over a finite field of characteristic $p$ that runs in time $p^{1/2 + o(1)}$. We confirm its practicality and effectiveness by reporting on the performance of our SageMath implementation on a range of examples. The algorithm relies on Gonc{c}alvesu0027s generalization of Kedlayau0027s algorithm for cyclic covers, and Harveyu0027s work on Kedlayau0027s algorithm for large characteristic.
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Key words
cyclic covers,zeta functions
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