Qingfeng Sun

activity

20172021

δ

-method and hybrid bounds for

GL_{2}

1 citations · 1 across the 5 of their papers we have counts for

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11 papers · 1 filter

math.NT2022

On some estimates involving Fourier coefficients of Maass cusp forms

Qingfeng Sun, Hui Wang

Let $f$ be a Hecke-Maass cusp form for $S L_{2} (Z)$ with Laplace eigenvalue $λ_{f} (Δ) = 1/4 + μ^{2}$ and let $λ_{f} (n)$ be its $n$ -th normalized Fourier coefficient. It is proved t…

math.NT2021

Uniform subconvex bounds for Rankin-Selberg $L$ -functions

Qingfeng Sun

Let $f$ be a Maass cusp form for $S L_{2} (Z)$ with Laplace eigenvalue $1/4 + μ_{f}^{2}$ , $μ_{f} > 0$ . Let $g$ be an arbitrary but fixed holomorphic or Maass cusp form for $\rm SL_2…

math.NT2021

Analytic twists of $G L_{2} \times G L_{2}$ automorphic forms

Bingrong Huang, Qingfeng Sun, Huimin Zhang

Let $f$ and $g$ be holomorphic or Maass cusp forms for $S L_{2} (Z)$ with normalized Fourier coefficients $λ_{f} (n)$ and $λ_{g} (n)$ , respectively. In this paper, we prove nont…

math.NT2020

Bounds for $G L_{2} \times G L_{2}$ $L$ -functions in depth aspect

Qingfeng Sun

Let $f$ and $g$ be holomorphic or Maass cusp forms for $S L_{2} (Z)$ and let $χ$ be a primitive Dirichlet character of prime power conductor $q = p^{κ}$ with $p$ pr…

math.NT2020★ 1 cited

A Bessel $δ$ -method and hybrid bounds for $GL_{2}$

Yilan Fan, Qingfeng Sun

Let $g$ be a primitive holomorphic or Maass newform for $Γ_{0} (D)$ . In this paper, by studying the Bessel integrals associated to $g$ , we prove an asymptotic Bessel $δ$ -identity asso…

math.NT2020

A subconvex bound for twisted $L$ -functions

Qingfeng Sun, Hui Wang

Let $q > 2$ be a prime number, $χ$ a primitive Dirichlet character modulo $q$ and $f$ a primitive holomorphic cusp form or a Hecke-Maass cusp form of level $\ma…

On some estimates involving Fourier coefficients of Maass cusp forms

Uniform subconvex bounds for Rankin-Selberg L-functions

Analytic twists of GL2​×GL2​ automorphic forms

Bounds for GL2​×GL2​ L-functions in depth aspect

A Bessel δ-method and hybrid bounds for GL2​

A subconvex bound for twisted L-functions

Uniform subconvex bounds for Rankin-Selberg $L$ -functions

Analytic twists of $G L_{2} \times G L_{2}$ automorphic forms

Bounds for $G L_{2} \times G L_{2}$ $L$ -functions in depth aspect

A Bessel $δ$ -method and hybrid bounds for $GL_{2}$

A subconvex bound for twisted $L$ -functions