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arXiv · 2609.13429

Theta functions after Weil

Benjamin Howard
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Abstract

This is a mostly expository paper on the construction of theta functions on the Siegel and Hermitian half-spaces using the machinery of the Weil representation, especially theta functions weighted by polynomials. When the polynomial in question satisfies suitable homogeneity and harmonicity conditions, the resulting theta function is holomorphic. Non-holomorphic Siegel and Hermitian theta functions can be constructed in a similar way, using a more general class of polynomials.

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Benjamin Howard. 2026-09-11. Theta functions after Weil. https://arxiv.org/abs/2609.13429

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