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arXiv · 1110.1997

A new geometric description for Igusa's modular form $(azy)_5$

Alessio Fiorentino
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Abstract

The modular form $(azy)_5$ notably appears in one of Igusa's classic structure theorems as a generator of the ring of full modular forms in genus 2, being exhibited by means of a complicated algebraic expression. In this work a different description for this modular form is provided by resorting to a peculiar geometrical approach.

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Alessio Fiorentino. 2011-10-10. A new geometric description for Igusa's modular form $(azy)_5$. https://doi.org/10.1007/s12188-013-0077-z

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