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Computing Theta Functions with Julia

15 Jun 2019arXiv:1906.06507links table onlyarchive 2025-07-28

Daniele Agostini, Lynn Chua

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We present a new package Theta.jl for computing with the Riemann theta function. It is implemented in Julia and offers accurate numerical evaluation of theta functions with characteristics and their derivatives of arbitrary order. Our package is optimized for multiple evaluations of theta functions for the same Riemann matrix, in small dimensions. As an application, we report on experimental approaches to the Schottky problem in genus five.

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