Asymptotic identities for additive convolutions of sums of divisors

التفاصيل البيبلوغرافية
العنوان: Asymptotic identities for additive convolutions of sums of divisors
المؤلفون: Oliver, Robert J. Lemke, Shrestha, Sunrose T., Thorne, Frank
سنة النشر: 2020
المجموعة: Mathematics
مصطلحات موضوعية: Mathematics - Number Theory
الوصف: In a 1916 paper, Ramanujan studied the additive convolution $S_{a, b}(n)$ of sum-of-divisors functions $\sigma_a(n)$ and $\sigma_b(n)$, and proved an asymptotic formula for it when $a$ and $b$ are positive odd integers. He also conjectured that his asymptotic formula should hold for all positive real $a$ and $b$. Ramanujan's conjecture was subsequently proved by Ingham, and then by Halberstam with a power saving error term. In this paper, we give a new proof of Ramanujan's conjecture that obtains lower order terms in the asymptotics for most ranges of the parameters. We also describe a connection to a counting problem in geometric topology that was studied in the second author's thesis and which served as our initial motivation in studying this sum.
Comment: revised to rewrite the introduction, highlight main theorems and update references
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2007.09275
رقم الأكسشن: edsarx.2007.09275
قاعدة البيانات: arXiv