A simple twisted relative trace formula

Compression for trace zero points on twisted Edwards curves

We propose two optimal representations for the elements of trace zero subgroups of twisted Edwards curves. For both representations, we provide efficient compression and decompression algorithms. The efficiency of the algorithm is compared with the efficiency of similar algorithms on elliptic curves in Weierstrass form.

Niebur-Poincaré Series and Traces of Singular Moduli

We compute the Fourier coefficients of analogues of Kohnen and Zagier's modular forms $f_{k,D}$ of weight $2$ and negative discriminant. These functions can also be written as twisted traces of certain weight $2$ Poincaré series with evaluations of Niebur-Poincaré series as Fourier coefficients. This allows us to study twisted traces of singular moduli in an integral weight setting. In particular, we recover explicit series expressions for twisted traces of singular moduli and extend algebraicity results by Bengoechea to the weight $2$ case. We also compute regularized inner products of these …

Twisted linear periods and a new relative trace formula

We study the linear periods on $GL_{2n}$ twisted by a character using a new relative trace formula. We establish the relative fundamental lemma and the transfer of orbital integrals. Together with the spectral isolation technique of Beuzart-Plessis--Liu--Zhang--Zhu, we are able to compare the elliptic part of the relative trace formulae and to obtain new results generalizing Waldspurger's theorem in the $n=1$ case.

Twisted relative trace formulae with a view towards unitary groups

We introduce a twisted relative trace formula which simultaneously generalizes the twisted trace formula of Langlands et.al. (in the quadratic case) and the relative trace formula of Jacquet and Lai. Certain matching statements relating this twisted relative trace formula to a relative trace formula are also proven (including the relevant undamental lemma in the "biquadratic case"). Using recent work of Jacquet, Lapid and their collaborators and the Rankin-Selberg integral representation of the Asai $L$-function (obtained by Flicker using the theory of Jacquet, Piatetskii-Shapiro, and Shalika)…

Absolute convergence of the twisted Arthur-Selberg trace formula

We show that the distributions occurring in the geometric and spectral side of the twisted Arthur-Selberg trace formula extend to non-compactly supported test functions. The geometric assertion is modulo a hypothesis on root systems proven when the group is split. The result extends the work of Finis-Lapid (and Müller, spectral side) to the twisted setting. We use the absolute convergence to give a geometric interpretation of sums of residues of certain Rankin-Selberg L-functions.

相对迹公式与扭曲 $L$-函数：Burgess 界

Relative Trace Formula and Twisted $L$-functions: the Burgess Bound

本文发展了正则化相对迹公式，证明了扭曲 $L$-函数 $L(1/2,π\timesχ)$ 的精细混合次凸性界，并特别得到了关于解析前导子的 Burgess 次凸性界。

Central values of twisted base change $L$-functions associated to Hilbert modular forms

We use relative trace formula to prove a non-vanishing result and a subconvexity result for the twisted base change $L$-functions associated to Hilbert modular forms whose local components at ramified places are some supercuspidal representations. This generalizes the work of Feigon and Whitehouse.

$\mathrm{GL}_n$ 的自对偶与共轭自对偶表示的扭曲迹的渐近行为

Asymptotic behavior for twisted traces of self-dual and conjugate self-dual representations of $\mathrm{GL}_n$

本文研究了在某些条件下 $\mathrm{GL}_n$ 的自对偶或共轭自对偶离散自守表示扭曲迹之和的渐近行为，基于 Arthur 扭曲迹公式推导出主项及 Fourier 变换显式形式，并应用于局部表示的整体化及推导自守密度定理。

余正则对称对的 Whittaker 归纳的局部扭曲迹公式：几何侧

A local twisted trace formula for Whittaker induction of coregular symmetric pairs: the geometric side

本文建立余正则对称对 Whittaker 归纳的局部扭曲迹公式几何侧及拟特征标正则芽公式，并推出强尖点测试函数下的局部迹公式、模型重数公式及 L-包相关应用。

Stabilisation de la formule des traces tordue X: stabilisation spectrale

It is the last paper of a long series. We present the spectral side of the twisted trace formula and its stable version. Using the method of Arthur, we finish the proof of the stabilization of the two sides of this twisted trace formula.

Explicit formulas for the twisted Koecher-Maass series of the Duke-Imamoglu-Ikeda lift and their applications

We give an explicit formula for the twisted Koecher-Maass series of the Duke-Imamoglu-Ikeda lift. As an application we prove a certain algebraicity result for the values of twisted Rankin-Selberg series at integers of half-integral weight modular forms, which was not treated by Shimura.

Stabilisation de la formule des traces tordue VII: descente globale

We begin the proof of the stabilization of the twisted trace formula. Here we prove that almost all "coefficients" appearing in this formula are equal to their endoscopic counterpart. It is the generalization to the twisted case of the result proved by Arthur in his second article on the stabilization of the trace formula.

Stabilisation de la formule des traces tordue VIII: l'application epsilon_tilde{M} sur un corps de base local non-archimédien

It is a step in the proof of the stabilization of the twisted trace formula. We generalize to the twisted case the proposition 3.1 of the third Arthur's paper on the stabilization. That is, consider the difference between an omega-equivariant weighted orbital integral (relative to a Levi subspace of a twisted space) and its endoscopic avatar. Then this difference is the ordinary omega-orbital integral of some function on the Levi subspace. Here, the base-field is non-archimedean.

A Twisted Motohashi Formula and Weyl-Subconvexity for $L$-functions of Weight Two Cusp Forms

We derive a Motohashi-type formula for the cubic moment of central values of $L$-functions of level $q$ cusp forms twisted by quadratic characters of conductor $q$, previously studied by Conrey and Iwaniec and Young. Corollaries of this formula include Weyl-subconvex bounds for $L$-functions of weight two cusp forms twisted by quadratic characters, and estimates towards the Ramanujan-Petersson conjecture for Fourier coefficients of weight 3/2 cusp forms.

非伽罗瓦四次CM域上\(\mathrm{GL}_2\)的扭曲西格尔 - 韦伊公式

Twisted Siegel-Weil formulas for $\mathrm{GL}_2$ over non-Galois quartic CM fields

研究非伽罗瓦四次CM域上\(\mathrm{GL}_2\)的扭曲西格尔 - 韦伊公式，通过联系扭曲西塔积分与赫克积分的土居 - 永野提升，证明雅克比 - 朗兰兹对应基变换是同构，还得出博切尔兹形式扭曲CM值相关结论。

Averages of twisted L-functions

We use a relative trace formula on GL(2) to compute a sum of twisted modular L-functions anywhere in the critical strip, weighted by a Fourier coefficient and a Hecke eigenvalue. When the weight k or level N is sufficiently large, the sum is nonzero. Specializing to the central point, we show in some cases that the resulting bound for the average is as good as that predicted by the Lindelof hypothesis in the k and N aspects.

Stabilisation de la formule des traces tordue IV: transfert spectral archimédien

It is one of a series of papers whose goal is to stabilize the twisted trace formula. We consider here a "twisted space" over the real field. We prove in this twisted situation the results obtained by Arthur in his Selecta's paper. That is the existence of transfer of tempered representations. We use the Paley-Wiener's theorems of Renard and Delorme-Mezo, the work of Shelstad about transfer of functions and a recent result of Moeglin about super-tempered representations. As corollaries, we obtain a stable version of the Paley-Wiener theorem and the fact that transfer of functions preserves K-f…

Stabilisation de la formule des traces tordue VI: la partie géométrique de cette formule

This paper is one of a series whose goal is to stabilize the twisted Arthur-Selberg's trace formula. Here we define the objects appearing in the geometric side of the twisted trace formula. We define also the similar stable and endoscopic objects. We state the principal theorems concerning the stabilization of this geometric side. The proofs will be given in forthcoming papers.

Twisted arithmetic Siegel Weil formula on X0(N)

In this paper, we study twisted arithmetic divisors on the modular curve X_0(N) with N square-free. For each pair (Δ, r) where Δ>0 and Δ\equiv r^2 \mod 4N, we constructed a twisted arithmetic theta function ϕ_{Δ, r}(τ) which is a generating function of arithmetic twisted Heegner divisors. We prove the modularity of ϕ_{Δ, r}(τ), along the way, we also identify the arithmetic pairing \langle ϕ_{Δ, r}(τ),\widehatω_N \rangle with special value of some Eisenstein series, where \widehatω_N is a normalized metric Hodge line bundle.

The reciprocity law for the twisted second moment of Dirichlet L-functions

We produce a new proof of the reciprocity law for the twisted second moment of Dirichlet L-functions that was recently proved by Conrey. Our method is to analyze certain two-variable sums where the variables satisfy a linear congruence. We show that these sums satisfy an elegant reciprocity formula. In the case that the modulus is prime, these sums are closely related to the twisted second moment, and the reciprocity formula for these sums implies Conrey's reciprocity formula. We also extend the range of uniformity of Conrey's formula.

Level Reciprocity in the twisted second moment of Rankin-Selberg L-functions

We prove an exact formula for the second moment of Rankin-Selberg $L$-functions $L(1/2,f \times g)$ twisted by $λ_f(p)$, where $g$ is a fixed holomorphic cusp form and $f$ is summed over automorphic forms of a given level $q$. The formula is a reciprocity relation that exchanges the twist parameter $p$ and the level $q$. The method involves the Bruggeman/Kuznetsov trace formula on both ends; finally the reciprocity relation is established by an identity of sums of Kloosterman sums.

On the twisted quadratic moment for Dirichlet L-functions

Given $c,$ a positive integer, we give an explicit formula and an asymptotic formula for \[ \sumχ(c)|L(1,\,χ)|^{2}, \] where $χ$ is the non-trivial Dirichlet character mod $f$ with $f>c.$

扭曲Kloosterman和的四次幂矩与Hurwitz类数

Fourth power moment of twisted Kloosterman sum and Hurwitz class numbers

本文研究扭曲Kloosterman和四次幂矩与Hurwitz类数的关系，借助Calabi-Yau三维簇点计数公式推导显式表达式，利用模形式相关理论得到加权和及该矩的渐近公式。

Asymptotic distribution of traces of singular moduli

We determine the asymptotic behavior of twisted traces of singular moduli with a power-saving error term in both the discriminant and the order of the pole at $i\infty$. Using this asymptotic formula, we obtain an exact formula for these traces involving the class number and a finite sum involving the exponential function evaluated at CM points.

$GL(3)\times GL(2)$ $L$-functions III: twisted case的谱矩公式

Spectral Moment Formulae for $GL(3)\times GL(2)$ $L$-functions III: The Twisted Case

本文通过周期互易技术研究$GL(3)\times GL(2)$ $L$-functions的非阿基米德矩，探讨扭曲矩猜想。

Values at non-positive integers of partially twisted multiple zeta-functions I

We study the behavior of partially twisted multiple zeta-functions. We give new closed and explicit formulas for special values at non-positive integer points of such zeta-functions. Our method is based on a result of M. de Crisenoy on the fully twisted case and the Mellin-Barnes integral formula.

Factorization statistics and the twisted Grothendieck-Lefschetz formula

We announce recent results on a connection between factorization statistics of polynomials over a finite field and the structure of the cohomology of configurations in $\mathbb{R}^3$ as a representation of the symmetric group. This connection parallels a result of Church, Ellenberg, and Farb relating factorization statistics of squarefree polynomials and the cohomology of configurations in $\mathbb{R}^2$.

Stabilisation de la formule des traces tordue III: intégrales orbitales et endoscopie sur un corps local non-archimédien; réductions et preuves

This is one of a series of articles, in collaboration with C. Moeglin, whose goal is to stabilize the twisted trace formula. In the previous article, we have stated several assertions about the stabilization of weighted orbital integrals over a non-archimedean field. Those integrals depend on a conjugacy class in our twisted space. Here we deduce all these assertions from a unique one, where the conjugacy class is assumed to be strongly regular.

Special value formula for the twisted triple product $L$-function and an application to the restricted $L^2$-norm problem

We establish explicit Ichino's formulae for the central values of the triple product $L$-functions with emphasis on the calculations for the real place. The key ingredient for our computations is Proposition 6.8 which generalizes a result of Michel-Venkatesh. As an application we prove the optimal upper bound of a sum of restricted $L^2$-norms of the $L^2$-normalized newforms on certain quadratic extensions with prime level and bounded spectral parameter following the methods of Blomer.

Formulas for central critical values of twisted L-functions attached to paramodular forms

In the 1980s Böcherer formulated a conjecture relating the central values of the imaginary quadratic twists of the spin L-function attached to a Siegel modular form $F$ to the Fourier coefficients of $F$. This conjecture has been proved when $F$ is a lift. More recently, we formulated an analogous conjecture for paramodular forms $F$ of prime level, even weight and in the plus-space. In this paper, we examine generalizations of this conjecture. In particular, our new formulations relax the conditions on $F$ and allow for twists by real characters. Moreover, these formulation are more explicit …

Stabilisation de la formule des traces tordue I: endoscopie tordue sur un corps local

This is the first of a series of papers devoted to the stabilization of the twisted trace formula. It is just an introduction. We present the local theory of twisted endoscopy, following the fundamental works of Kottwitz-Shelstad, Labesse and Shelstad. Our presentation is partly new because we try to give canonical definitions of the basic objects, which are more usually defined using auxiliary data. We prove also some results about the image of endoscopic transfer and about the dual transfer of stable distributions whose support is a finite set of stable conjugacy classes.

Asai L-函数的中心值与扭曲的 Gan--Gross--Prasad 猜想

Central values of Asai L-functions and twisted Gan--Gross--Prasad conjecture

本文在相对 Langlands 纲领下研究了涉及 Weil 表示的新相对迹公式，通过几何分解与全局比较，在局部假设下证明了任意维度且允许数域分歧的扭曲 GGP 猜想。

非分歧二次扩张的扭曲 Gan-Gross-Prasad 猜想

Twisted Gan-Gross-Prasad conjecture for unramified quadratic extensions

本文采用相对迹公式，在非分歧性与局部条件下证明了酉群嵌入一般线性群情形的扭曲全局 Gan-Gross-Prasad 猜想及其精细化。

The Twisted Satake Transform and the Casselman-Shalika Formula for Quasi-Split Groups

We prove the Casselman-Shalika formula for unramified groups over a non-archimedean local field by studying the action of the spherical Hecke algebra on the space of compact spherical Whittaker functions via the twisted Satake transform. This method provides a conceptual explanation of the appearance of characters of a dual group in the Casselman-Shalika formula.

扭态特征公式 for 超 cuspidal 表示

Twisted character formula for toral supercuspidal representations

本文在若干技术假设下，给出了 p-adic 红uctive 组中 toral 超 cuspidal 表示的扭态 Harish-Chandra 特征公式，特别包括 quasi-split 组配以反演的情况。

二次空间对的自守扭曲求和公式

Automorphic-twisted summation formulae for pairs of quadratic spaces

本文依据 Braverman-Kazhdan、Lafforgue、Ngô 和 Sakellaridis 的猜想，证明二次空间对的自守扭曲求和公式，并给出非分歧数据下局部因子的表达式。

The Jacquet Langlands correspondence via twisted descent

The existence of the well-known Jacquet-Langlands correspondence was established by Jacquet and Langlands via the trace formula method in 1970. An explicit construction of such a correspondence was obtained by Shimizu via theta series in 1972. In this paper, we extend the automorphic descent method of Ginzburg-Rallis-Soudry to a new setting. As a consequence, we recover the classical Jacquet-Langlands correspondence for PGL(2) via a new explicit construction.

关于与有限斜率族相伴的扭曲三重积 $p$-进 $L$-函数的 $p$-进 Gross-Zagier 公式

A $p$-adic Gross-Zagier formula for twisted triple product $p$-adic $L$-functions attached to finite slope families

本文推广了关于扭曲三重积 $p$-进 $L$-函数的 $p$-进 Gross-Zagier 公式，将其扩展至 Hilbert 模形式的有限斜率族，并允许素数 $p$ 在实二次域中为惰性。

Stabilisation de la formule des traces tordue IX : propriétés des intégrales orbitales pondérées $ω$ equivariantessurlecorpsréel

In the preceeding article, we have generalized to the twisted case the proposition 3.1 of the third Arthur's article on the stabilization of the trace formula. The base-field was p-adic. Here, we prove the same result over the real base-field. We prove also auxiliary results on the differential equations and the jump's conditions satisfied by the weighted orbital integrals.

非约化特殊闭链与扭曲算术基本引理

Non-reductive special cycles and Twisted Arithmetic Fundamental Lemma

本文研究相对Langlands纲领的算术类似物，引入镜像特殊闭链并构建算术归纳法，在酉Shimura簇上提出算术扭曲Gan--Gross--Prasad猜想，并证明了关键的扭曲算术基本引理。

Stabilisation de la formule des traces tordue II: intégrales orbitales et endoscopie sur un corps local non-archimédien; définitions et énoncés des résultats

It is the second article of a series whose final goal is the stabilization of the twisted trace formula. Over a non archimedean field, we define (after Arthur) wheighted orbital integrals and their stable and endoscopic versions. We state the main theorems that will be proved in the following articles. We begin to study the local properties of our integrals, for instance expansion in Shalika germs.

Twisted limit formula for torsion and cyclic base change

Let $G$ be the group of complex points of a real semi-simple Lie group whose fundamental rank is equal to 1, e.g. $G= \SL_2 (\C) \times \SL_2 (\C)$ or $\SL_3 (\C)$. Then the fundamental rank of $G$ is $2,$ and according to the conjecture made in \cite{BV}, lattices in $G$ should have 'little' --- in the very weak sense of 'subexponential in the co-volume' --- torsion homology. Using base change, we exhibit sequences of lattices where the torsion homology grows exponentially with the \emph{square root} of the volume. This is deduced from a general theorem that compares twisted and untwisted $L^…