Exponential sums over singular binary quintics

Yasuhiro Ishitsuka

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arXiv · 2605.04935

Exponential sums over singular binary quintics

Yasuhiro Ishitsuka

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Abstract

We give a characteristic-free explicit formula for exponential sums over singular binary quintic forms, based on the Waring decomposition of binary forms. This extends the method used in our previous work on the space of binary quartics to a non-coregular space.

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Yasuhiro Ishitsuka. 2026-05-06. Exponential sums over singular binary quintics. https://arxiv.org/abs/2605.04935

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