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Award ID contains: 2302309

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  1. ; ; (, Journal de théorie des nombres de Bordeaux)
    We construct a generalization of the Dedekind–Rademacher cocycle to congruence subgroups of SL 2 ( ℂ ) , and derive some of its basic properties. In particular, we show that it parametrizes a family of L -values and prove the integrality of these values. 
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    Free, publicly-accessible full text available January 1, 2026
  2. ; (, Journal of Number Theory)
    It was conjectured by physicists that a particular shifted sum of even divisor sums vanishes, and a formal argument was later given for this vanishing. Shifted convolution sums of this form appear when computing the Fourier expansion of coefficients for the low energy scattering amplitudes in type IIB string theory and have applications to subconvexity bounds of L-functions. In this article, we generalize the argument from and rigorously evaluate shifted convolution of the divisor functions. In doing so, we derive exact identities for these sums and conjecture particular identities similar to but different from the one originally found. 
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  3. ; (, Research in Number Theory)
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