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We establish a smoothed asymptotic formula for the third moment of quadratic {D}irichlet $L$-functions at the central value. In addition to the main term, which is known, we prove the existence of a secondary term of size $x^{\frac{3}{4}}$.…

Number Theory · Mathematics 2018-04-04 Adrian Diaconu , Ian Whitehead

We evaluate the first moment of central values of the family of quadratic Dirichlet $L$-functions using the method of double Dirichlet series. Under the generalized Riemann hypothesis, we prove an asymptotic formula with an error term of…

Number Theory · Mathematics 2024-08-27 Peng Gao , Liangyi Zhao

We prove an asymptotic for the moment of derivatives of quadratic twists of two distinct modular $L$-functions. This was previously known conditionally on GRH by the work of Ian Petrow.

Number Theory · Mathematics 2025-11-27 Zijie Zhou

We study the fourth moment of quadratic Dirichlet $L$-functions at $s= \frac{1}{2}$. We show an asymptotic formula under the generalized Riemann hypothesis, and obtain a precise lower bound unconditionally. The proofs of these results…

Number Theory · Mathematics 2020-07-29 Quanli Shen

We obtain an asymptotic formula for the smoothly weighted first moment of primitive quadratic Dirichlet L-functions at the central point, with an error term that is "square-root" of the main term. Our approach uses a recursive technique…

Number Theory · Mathematics 2013-03-27 Matthew P. Young

We prove an asymptotic formula for the second moment of central values of Dirichlet $L$-functions restricted to a coset. More specifically, consider a coset of the subgroup of characters modulo $d$ inside the full group of characters modulo…

Number Theory · Mathematics 2026-05-06 Bradford Garcia , Matthew P. Young

In this series, we investigate the calculation of mean values of derivatives of Dirichlet $L$-functions in function fields using the analogue of the approximate functional equation and the Riemann Hypothesis for curves over finite fields.…

Number Theory · Mathematics 2019-06-26 Julio Andrade , Hwanyup Jung

We consider a sum of the derivatives of Dirichlet $L$-functions over the zeros of Dirichlet $L$-functions. We give an asymptotic formula for the sum.

Number Theory · Mathematics 2021-06-04 Hirotaka Kobayashi

We prove an asymptotic formula for the second moment of a product of two Dirichlet L-functions on the critical line, which has a power saving in the error term and which is uniform with respect to the involved Dirichlet characters. As…

Number Theory · Mathematics 2021-06-04 Berke Topacogullari

We develop a hybrid Euler-Hadamard product model for quadratic Dirichlet $L$--functions over function fields (following the model introduced by Gonek, Hughes and Keating for the Riemann-zeta function). After computing the first three…

Number Theory · Mathematics 2018-04-04 H. M. Bui , Alexandra Florea

Extending a result of Heath-Brown, we establish an asymptotic formula for the fourth moment of central values of Dirichlet $L$-functions attached to primitive characters $\pmod q$.

Number Theory · Mathematics 2007-05-23 K. Soundararajan

In a previous work with B. Garcia, the author considered the asymptotic for the second moment of Dirichlet $L$-functions along cosets, and exhibited a surprising secondary main term that is not predicted by the recipe of Conrey, Farmer,…

Number Theory · Mathematics 2026-05-11 Matthew P. Young

We prove Motohashi's formula for a mixed second moment of the Riemann zeta function and a Dirichlet $L$-function attached to a primitive Dirichlet character modulo $q \in \mathbb{N}$. If $q$ is an odd prime, our reciprocity formula is…

Number Theory · Mathematics 2025-02-17 Ikuya Kaneko

We prove an asymptotic for the second moment of quadratic twists of a modular $L$-function. This was previously known conditionally on GRH by the work of Soundararajan and Young.

Number Theory · Mathematics 2022-08-23 Xiannan Li

We establish an unconditional result concerning the asymptotic formula for the moment of derivatives of $L$-functions $L(s, f \otimes \chi_{8d})L(s, g \otimes \chi_{8d})$ over quadratic twists, where $f$ and $g$ are distinct cuspidal…

Number Theory · Mathematics 2025-03-19 Seokhyun Choi , Beomho Kim , Hansol Kim , Hojin Kim , Wonwoong Lee

We compute the fourth moment of Dirichlet L-functions at the central point for prime moduli, with a power savings in the error term.

Number Theory · Mathematics 2013-03-27 Matthew P. Young

We establish sharp upper bounds for shifted moments of quadratic Dirichlet $L$-function under the generalized Riemann hypothesis. Our result is then used to prove bounds for moments of quadratic Dirichlet character sums.

Number Theory · Mathematics 2025-11-26 Peng Gao , Liangyi Zhao

We establish upper bounds for shifted moments of cubic and quartic Dirichlet $L$-functions under the generalized Riemann hypothesis. As an application, we prove bounds for moments of cubic and quartic Dirichlet character sums.

Number Theory · Mathematics 2025-08-21 Peng Gao , Liangyi Zhao

There has recently been some interest in optimizing the error term in the asymptotic for the fourth moment of Dirichlet L-functions and a closely related mixed moment of L-functions involving automorphic L-functions twisted by Dirichlet…

Number Theory · Mathematics 2024-01-04 Rizwanur Khan , Zeyuan Zhang

We compute the second moment of the Dedekind zeta function of a quadratic field times an arbitrary Dirichlet polynomial of length $T^{1/11-\epsilon}$.

Number Theory · Mathematics 2012-11-12 Winston Heap