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Theta Series with Half-integral Characteristics

Riccardo Salvati Manni

Source record

Source: arXiv

Published: Oct 5, 2026

arXiv: 2610.06323

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Source abstract

We study theta series with half-integral characteristics attached to odd positive-definite unimodular lattices. In even rank, we get non-vanishing theta series with odd characteristics. We emphasize ranks divisible by four, where the involved rational lattices are integral unimodular neighbors.

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