On the AF-algebra of a Hecke eigenform
Igor Nikolaev
对权为2的尖点形式f赋予一个AF-代数，当f是Hecke特征形时，研究了这个算子代数的性质.
An AF-algebra is assigned to each cusp form f of weight two; we study properties of this operator algebra, when f is a Hecke eigenform.
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We prove a sharp upper bound on the $L^2$-norm of Hecke eigenforms restricted to a horocycle, as the weight tends to infinity.
Hecke Eigenforms as Products of Eigenforms
本文研究了Γ_1（N）的两个Hecke本征形的乘积何时又是Hecke本征形。本文证明了权大于1的两个正则本征形的乘积仅为61次本征形，并给出了一个完整的列表。Duke [Duk 99]和Ghate [Gha 00]分别证明了对于SL_2（Z）的本征形，只有16个这样的乘积恒等式。Ghate [Gha 02]也证明了关于Γ_1（N）的相关结果，其中N平方是自由的. Emmons [Emm 05]证明了远离水平的特征形的结果，对于素数水平。我们使用的方法是基本的和有效的，并不依赖于杜克大学和Ghate使用的Rankin-Selberg卷积方法。
Effective decorrelation of Hecke eigenforms
本文证明了权重趋于无穷大时两个Hecke特征形式值的有效定量去相关，并由此得出其线性组合的质量与零点的有效等分布版本。
Systematic choice of the Hecke eigenforms of half-integral weight is an interesting problem in the theory of modular forms. In this paper, we find all Dedekind-eta products of half-integral weight which are Hecke eigenforms up to weight 15/2 with varying levels. Proof is based on the Shimura lift.
We prove sub-convex bounds on the fourth moment of Hecke-Laplace eigenforms on $S^3$. As a corollary, we get a bound on the sup-norm on an individual eigenform, which constitutes an improvement over what is achievable through employing the Iwaniec-Sarnak amplifier.
We show that the image of repeated differentiation on weak cusp forms is precisely the subspace which is orthogonal to the space of weakly holomorphic modular forms. This gives a new interpretation of the weakly holomorphic Hecke eigenforms.
We determine a formula for the average values of L-series associated to eigenforms at complex values.
Cusp forms for the full modular group can be written as linear combination of double Eisenstein series introduced by Gangl, Kaneko and Zagier. We give an explicit formula for decomposing a Hecke eigenform into double Eisenstein series.
Shifted convolution sums play a prominent rôle in analytic number theory. We investigate pointwise bounds, mean-square bounds, and average bounds for shifted convolution sums for Hecke eigenforms.
We prove that, for fixed tame level (N,p) = 1, there are only finitely many Hecke eigenforms f of level Gamma_1(N) and even weight with a_p(f) = 0 which are not CM.
Joint distribution of Hecke eigenforms
本文提出关于多个Hecke特征形式联合分布的猜想，证明了在广义黎曼猜想和广义拉马努金猜想下，两个Hecke特征形式联合质量的渐进行为，并展示了两个Hecke特征形式渐近去相关性消失的结论。
We obtain a closed form polynomial expression for certain coefficients of Drinfeld-Goss double-cuspidal modular forms which are eigenforms for the degree one Hecke operators with power eigenvalues, and we use those formulas to prove vanishing results for an infinite family of those coefficients.
On Rankin-Cohen Brackets of Hecke Eigenforms and Modular Forms of Half-Integral Weight
本文将Hecke特征形式平方与高阶特征形式的线性关系推广至一般阶Rankin-Cohen括号，并推广了Zagier的Petersson内积公式。
Non vanishing of Central values of modular L-functions for Hecke eigenforms of level one
设F（z）是一个新的具有平凡特征标的权为2k的水平1的形式，并假定F（z）是所有Hecke算子的非零本征形.本文研究了F的扭模L-函数的中心值的非零性。
Joint distribution of Hecke eigenforms on $\mathbb{H}^3$
本文研究了Hecke特征形式在H³上的联合分布，并支持正交尖点形式的统计独立性猜想。
In this article, we distinguish Siegel cuspidal eigenforms of degree two on the full symplectic group from the signs of their Hecke eigenvalues. To establish our theorem, we obtain a result towards simultaneous sign changes of eigenvalues of two Siegel eigenforms. In the course of the proof, we also prove that the Satake $p$-parameters of two different Siegel eigenforms are distinct for a set of primes $p$ of density 1. The main ingredient to prove the latter result is the theory of Galois representations attached to Siegel eigenforms.
Rankin-Cohen Brackets of Hilbert Hecke Eigenforms
本文在窄类数一的全实域上证明希尔伯特模群两个Hecke特征形式的Rankin-Cohen括号仅因维数原因可能成为特征形式，并证明Freitag体积猜想及在维数猜想下得到乘积恒等式有限性。
We investigate the equidistribution of Hecke eigenforms on sets that are shrinking towards infinity. We show that at scales finer than the Planck scale they do not equidistribute while at scales more coarse than the Planck scale they equidistribute on a full density subsequence of eigenforms. On a suitable set of test functions we compute the variance showing interesting transition behavior at half the Planck scale.
Mass equidistribution for Hecke eigenforms
证明了Rudnick和Sarnak关于Hecke本征形质量等分布的一个猜想。这建立在作者的独立工作之上，参见arxiv.org：math/0809.1640和arxiv.org：math/0809.1635。
Mixed moments of Hecke eigenforms and $L$-functions
研究Hecke特征形式不同重量的混合(2,2)矩的期望和方差估计，应用于三重积L-函数，基于L-函数的矩证明。
It is shown that extremal $2$-modular lattices of ranks $32$ and $48$ are generated by their vectors of minimal norm. In the proof, we use certain properties of the difference of normalized Hecke eigenforms. We refer to them as the pseudo-normalized Hecke eigenform, the concept of which is introduced in this paper.
Distinguishing Hecke eigenforms
我们重新拉姆Murty定理的初始傅里叶系数的数量，两个尖形的不同的权重的特征可以有共同的。我们证明了这个数的一个明确的上界，并给出了更好的条件和无条件渐近上界。最后，我们描述了一个数值实验测试的清晰度的上界的情况下，形式的水平一。
Products of Nearly Holomorphic Eigenforms
我们证明了两个几乎全纯的Hecke本征形的乘积在因子的选择只有100%时仍然是Hecke本征形。
We study the eigenforms of the action of A. Baker's Hecke operators on the holomorphic elliptic homology of various topological spaces. We prove a multiplicity one theorem (i.e., one-dimensionality of the space of these "topological Hecke eigenforms" for any given eigencharacter) for some classes of topological spaces, and we give examples of finite CW-complexes for which multiplicity one fails. We also develop some abstract "derived eigentheory" whose motivating examples arise from the failure of classical Hecke operators to commute with multiplication by various Eisenstein series. Part of th…
Let f be a modular form with complex multiplication. If f has critical slope, then Coleman's classicality theorem implies that there is a p-adic overconvergent generalized Hecke eigenform with the same Hecke eigenvalues as f. We give a formula for the Fourier coefficiets of this generalized Hecke eigenform. We also investigate the dimension of the generalized Hecke eigenspace of p-adic overconvergent forms containing f.
Let $f\in S_k(Γ_{0}(N))$ be a normalized Hecke eigenform of even integral weight $k$ and level $N$. Let $j\ge1$ be a positive integer. We prove that for almost all primes $p$, $p\nmid N$, and for all characters $χ_{0}=\pm 1\pmod N$, the sequence $\left(χ_{0}(p^{nj})a(p^{nj})\right)_{n\in\N}$ has infinitely many sign changes. We also obtain a similar result for the sequence $\left(a(p^{j(1+2n)})\right)_{n\in\N}$ when $j$ is odd.
Hecke eigenforms for meromorphic cusp forms
该研究构造了$\text{SL}_2(\text{Z})$上两类亚纯尖点形式商空间的Hecke特征形式，并证明两类商空间分别作为Hecke模同构于相同权的尖点形式空间$S_{2k}$与全纯模形式空间$M_{2k}$。
In this paper, we study solutions to $h=af^2+bfg+g^2$, where $f,g,h$ are Hecke newforms with respect to $Γ_1(N)$ of weight $k>2$ and $a,b\neq 0$. We show that the number of solutions is finite for all $N$. Assuming Maeda's conjecture, we prove that the Petersson inner product $\langle f^2,g\rangle$ is nonzero, where $f$ and $g$ are any nonzero cusp eigenforms for $SL_2(\mathbb{Z})$ of weight $k$ and $2k$, respectively. As a corollary, we obtain that, assuming Maeda's conjecture, identities between cusp eigenforms for $SL_2(\mathbb{Z})$ of the form $X^2+\sum_{i=1}^n α_iY_i=0$ all are forced by …
Schwarzian differential equations and Hecke eigenforms on Shimura curves
设$X$是亏格为零的Shimura曲线。本文首先用Schwarzian微分方程刻画了$X$上的自守形式空间。然后，我们设计了一种方法来计算这些空间上的Hecke算子。我们分析的一个有趣的副产品是评估$$_2F_1(1/24,7/24,5/6, -\frac{2^{10}\cdot3^3\cdot5}{11^4})=\sqrt6 \sqrt[6]{\frac{11}{5^5}} $$和其他类似的身份。
A family of Hecke eigenforms for Drinfeld modular forms of arbitrary rank
本文针对任意秩情形，利用特定表示发展向量Drinfeld模形式理论，以构造由扭曲艾森斯坦级数行列式给出的尖点Drinfeld-Hecke本征形式无穷族。
Explicit Hecke eigenform product identities for Hilbert modular forms
本文研究了Hilbert模形式的显式Hecke特征形式乘积恒等式，证明仅在Q(√5)存在两个这样的恒等式，并探讨了一般实数域的情况。
We address some questions posed by Goss related to the modularity of Drinfeld modules of rank 1 defined over the field of rational functions in one variable with coefficients in a finite field. For each positive characteristic valued Dirichlet character, we introduce certain projection operators on spaces of Drinfeld modular forms with character of a given weight and type such that when applied to a Hecke eigenform return a Hecke eigenform whose eigensystem has been twisted by the given Dirichlet character. Unlike the classical case, however, the effect on Goss' $u$-expansions for these eigenf…
Zeros of Hecke polynomials arising from weak eigenforms
研究Hecke多项式P_n(F;x)的零点，证明对于大n，每个零点都是单根且位于[0,1728]区间内，扩展了Rankin-Swinnerton-Dyer/Asai-Kaneko-Ninomiya理论至更广泛的调和Maass形式。
Eigenform Product Identities For Hilbert Modular Forms
证明了在所有实二次域和所有权为$2$或更大的满水平Hilbert模形式的空间中，两个Hecke特征形的乘积不是Hecke特征形，除非有100多个实二次域和100多个权.我们表明，对于$\mathbb Q(\sqrt 5)$正好有两个这样的身份。
On the $L^6$-norm of holomorphic Hecke eigenforms
本研究针对全纯尖形式的Hecke基，证明其$L^6$范数随权增长的下界，确认Hecke特征形式$L^6$范数不随权趋于无穷而一致收敛，并补充了6次联合质量的相关结果。
The hardness of computing an eigenform
在这篇文章中，我们给出的证据表明，计算傅里叶系数的Hecke特征型的复合指数是不容易的因式分解整数。特别是，我们表明，存在一个多项式时间算法，给定n，计算第n个傅里叶系数的（固定）Hecke特征形意味着，我们可以因子大多数RSA模数（数字是两个不同的素数的产品）在多项式时间。
Special $L$-values of certain CM weight three Hecke eigenforms
本文通过超几何伽罗华表示的模性，将某些CM重量三的海克尔克雷恩形式的L-函数特殊值与拉曼纽金的替代基联系起来，并对相关表示进行完整分类。
Hecke Eigenform Product Identities for Full-Level Hilbert Modular Forms
本研究针对次数不小于2的全实域上的全水平希尔伯特赫克本征形式，结合相关结果分类两类乘积恒等式，证明运用了多项数论方法，还建立了含非平凡窄类特征的权1艾森斯坦因子与尖点本征因子的恒等式。
A note on Fourier coefficients of Hecke eigenforms in short intervals
本文通过显式化 Chebotarev 密度定理并加强 Rouse–Thorner 的结果，研究短区间内非 CM Hecke 特征形式 Fourier 系数的大素因子下界。
Let $F$ and $G$ be Siegel cusp forms for $\Sp_4(\Z)$ and weights $k_1, k_2$ respectively. Also let $F$ and $G$ be Hecke eigenforms lying in distinct eigen spaces. Further suppose that neither $F$ nor $G$ is a Saito-Kurokawa lift. In this article, we study simultaneous arithmetic behaviour of Hecke eigenvalues of these Hecke eigenforms.
Ribet's construction of a suitable cusp eigenform
本文对Ribet构造具有某些同余性质的权为2的Hecke本征形作了详尽的论述。
Subspaces spanned by eigenforms with nonvanishing twisted central $L$-values
本文构造了整权本原形式中非零二次扭曲中心 $L$-值子空间与半整权本原形式中特定非零 Fourier 系数子空间的显式生成集，并证明二者经 Shimura 提升同构。
Prime-power congruences for level-one eigenforms
本文研究权重变化时一次本征形式的素数幂同余，通过构造Hecke等变转移映射将问题简化为有限计算，并对p=2,3,5,7分别获得模2^8、3^4、5^3和7^2的全权重分类。
We continue the study of strong, weak, and $dc$-weak eigenforms introduced by Chen, Kiming, and Wiese. We completely determine all systems of Hecke eigenvalues of level $1$ modulo $128$, showing there are finitely many. This extends results of Hatada and can be considered as evidence for the more general conjecture formulated by the author together with Kiming and Wiese on finiteness of systems of Hecke eigenvalues modulo prime powers at any fixed level. We also discuss the finiteness of systems of Hecke eigenvalues of level $1$ modulo $9$, reducing the question to the finiteness of a single e…
Explicit hypergeometric modularity of certain weight two and four Hecke eigenforms
本文基于超几何模性方法，构造了两个eta商函数家族，利用Jacobi theta函数理论及其立方类比，将某些重量为二和四的海尔克埃钦形式的傅里叶系数表示为有限域周期函数，并获得新的模形式傅里叶系数与有限域Appell级数特殊值的关系式。
We complete the construction of the nonlift weight two cusp paramodular Hecke eigenforms for prime levels N<600, which arise in conformance with the paramodular conjecture of Brumer and Kramer.
On divisibility of Hecke eigenvalues of Ikeda lifts
本文估计了Ikeda提升的Hecke特征值被固定正整数整除的素数密度，并研究了相关椭圆Hecke本征形式的傅里叶系数在算术级数中的分布。
Eigenforms and graphs of Hecke operators with wild ramification
研究在剧烈分歧下Hecke算子的图结构，通过组合条件获得Hecke特征空间的维度界与公式，且能构造特征形式。
Differential eigenforms
本文的目的是说明如何利用阿贝尔簇的微分特征标来构造Hecke算子的特征向量--权为0阶为2的微分模形式.这些微分模形式具有与某些权为2的经典复特征形式“基本相同”的特征值。
Hecke-type congruences for Andrews' spt-function modulo 16 and 32
最近由Andersen与不同的权力，2在模的分区相关的功能的启发，我们扩展了模32760同余的第一作者的功能spt（n）。我们证明了spt（n）的生成函数的正规化形式是Hecke算子T（l^2）对素数l >= 5的模32的本征形，其中l同余于1，11，17，19（mod 24），以及对l同余于？13，23（mod 24）.
Lehmer's 1947 conjecture on whether $τ(n)$ vanishes is still unresolved. In this context, it is natural to consider variants of Lehmer's conjecture. We determine many integers that cannot be values of $τ(n)$. For example, among the odd numbers $α$ such that $|α|<99$, we determine that $$τ(n) \notin \{-9, \pm 15, \pm 21, -25, -27, -33, \pm 35, \pm 45, \pm 49, -55, \pm 63, \pm 77, -81, \pm 91 \}.$$ Moreover, under GRH, we have that $τ(n) \neq -|α|$ and that $τ(n) \notin \{9,25,27,39,$ $75,81\}.$ We also consider the level 1 Hecke eigenforms in dimension 1 spaces of cusp forms. For example, for $…
On distinguishing Siegel cusp forms of degree two
本文研究了二度Siegel尖点形式的区分问题，证明在特定条件下，通过第二Hecke特征值可确定一类Hecke特征形式，并利用L函数区分不同形式。
On the largest prime factor of non-zero Fourier coefficients of Hecke eigenforms
本文研究了 Ramanujan tau 函数及非 CM 规范化 Hecke 特征形式的非零 Fourier 系数的最大素因数，证明了其下界估计，改进了前人工作。
Two variable anticyclotomic p-adic L-functions for Hida families
对于反分圆的p-adic Rankin-Selberg L-函数，通过考虑Hida族的Hecke本征形的权参数化，引入了第二个p-adic变量，并将其附加到固定的Hecke本征形和虚二次域上.
Approximation of L-functions associated to Hecke cusp eigenforms
基于 Matiyasevich 方法推导 Hecke 尖点特征形式 L 函数的逼近族，证明其收敛性并给出误差公式，成功应用于模判别式 L 函数零点定位及误差界分析。
Let $f$ be a cuspidal Hecke eigenform of level 1. We prove the automorphy of the symmetric power lifting $\mathrm{Sym}^n f$ for every $n \geq 1$. We establish the same result for a more general class of cuspidal Hecke eigenforms, including all those associated to semistable elliptic curves over $\mathbb{Q}$.
We investigate non-vanishing properties of $L(f,s)$ on the real line, when $f$ is a Hecke eigenform of half-integral weight $k+{1\over 2}$ on $Γ_0(4).$
We consider the action of Hecke-type operators on Hilbert-Siegel theta series attached to lattices of even rank. We show that average Hilbert-Siegel theta series are eigenforms for these operators, and we explicitly compute the eigenvalues.
The distribution of the eigenvalues of Hecke operators
对于每个素数$p$，我们确定了全模群的大权Hecke特征形的$p^{th}$傅里叶系数的分布.与$p\to\infty$一样，该分布趋向于Sato-Tate分布。
We compute Hecke eigenform bases of spaces of level one, degree~three Siegel modular forms and 2-Euler factors of the eigenforms through weight 22. Our method uses the Fourier coefficients of Siegel Eisenstein series, which are fully known and computationally tractable by the work of H. Katsurada; we also use P. Garrett's decomposition of the pullback of the Eisenstein series through the Witt map. Our results support I. Miyawaki's conjectural lift, and they give examples of eigenforms that are congruence neighbors.
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