Computation of genus 0 Belyi functions. Belyi functions is a captivating field of research in algebraic geometry, complex analysis, Galois theory. However, computation of Belyi functions of degree over 20 is still considered hard. If the desired branching pattern is nearly regular, pull-back transformations of hypergeometric equations to Fuchsian equations with just a few singularities can be used. This allows computation of Belyi functions of degree 60 and beyond. An implementation in Maple for computing genus 0 Belyi functions will be presented. The implementation is available at http://users.uoa.gr/ rvidunas/ComputeBelyi.mpl.
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References in zbMATH (referenced in 4 articles )
Showing results 1 to 4 of 4.
- Abdelaziz, Y.; Maillard, J.-M.: Modular forms, Schwarzian conditions, and symmetries of differential equations in physics (2017)
- Imamoglu, Erdal; van Hoeij, Mark: Computing hypergeometric solutions of second order linear differential equations using quotients of formal solutions and integral bases (2017)
- Shabat, G.: Calculating and drawing Belyi pairs (2017)
- van Hoeij, Mark; Vidūnas, Raimundas: Belyi functions for hyperbolic hypergeometric-to-Heun transformations (2015)