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Modular parametrization as Polyakov path integral: cases with CM elliptic curves as target spaces 作为Polyakov路径积分的模参数化:以CM椭圆曲线为目标空间的情况
IF 1.9 3区 数学 Q1 MATHEMATICS Pub Date : 2022-04-27 DOI: 10.4310/cntp.2022.v16.n2.a3
Satoshi Kondo, Taizan Watari
For an elliptic curve $E$ over an abelian extension $k/K$ with CM by $K$ of Shimura type, the L-functions of its $[k:K]$ Galois representations are Mellin transforms of Hecke theta functions; a modular parametrization (surjective map) from a modular curve to $E$ pulls back the $1$-forms on $E$ to give the Hecke theta functions. This article refines the study of our earlier work and shows that certain class of chiral correlation functions in Type II string theory with $[E]_mathbb{C}$ ($E$ as real analytic manifold) as a target space yield the same Hecke theta functions as objects on the modular curve. The Kähler parameter of the target space $[E]_mathbb{C}$ in string theory plays the role of the index (partially ordered) set in defining the projective/direct limit of modular curves.
对于具有CM × k的Shimura型椭圆曲线$E$在阿贝尔扩展$k/ k $上,其$[k: k]$伽罗瓦表示的l -函数是Hecke函数的Mellin变换;从模曲线到$E$的模参数化(满射映射)将$E$上的$1$-形式拉回以得到Hecke函数。本文对前人的研究进行了改进,证明了一类以$[E]_mathbb{C}$ ($E$为实解析流形)为目标空间的II型弦理论中的手性相关函数与模曲线上的对象产生相同的Hecke函数。弦理论中目标空间$[E]_mathbb{C}$的Kähler参数在定义模曲线的射影/直极限时起着索引(偏序)集的作用。
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引用次数: 0
Mirror symmetry of Calabi-Yau manifolds fibered by $(1,8)$-polarized abelian surfaces 由$(1,8)$-极化阿贝尔曲面纤维的Calabi-Yau流形的镜像对称性
IF 1.9 3区 数学 Q1 MATHEMATICS Pub Date : 2022-04-27 DOI: 10.4310/cntp.2022.v16.n2.a1
Shinobu Hosono, Hiromichi Takagi
We study mirror symmetry of a family of Calabi–Yau manifolds fibered by $(1,8)$-polarized abelian surfaces with Euler characteristic zero. By describing the parameter space globally, we find all expected boundary points (LCSLs), including those correspond to Fourier–Mukai partners. Applying mirror symmetry at each boundary point, we calculate Gromov–Witten invariants $(g leq 2)$ and observe nice (quasi-)modular properties in their potential functions. We also describe degenerations of Calabi–Yau manifolds over each boundary point.
研究了具有零欧拉特征的$(1,8)$ -极化阿贝尔曲面纤维的一类Calabi-Yau流形的镜像对称性。通过全局描述参数空间,我们找到了所有期望边界点(LCSLs),包括那些对应于Fourier-Mukai伙伴的边界点。在每个边界点上应用镜像对称,我们计算了Gromov-Witten不变量$(g leq 2)$,并观察到它们的势函数具有很好的(拟)模性质。我们还描述了Calabi-Yau流形在每个边界点上的退化。
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引用次数: 0
Resurgent Stokes data for Painlevé equations and two-dimensional quantum (super) gravity painlev<s:1>方程和二维量子(超)引力的复兴Stokes数据
IF 1.9 3区 数学 Q1 MATHEMATICS Pub Date : 2022-03-25 DOI: 10.4310/cntp.2023.v17.n2.a5
Salvatore Baldino, R. Schiappa, M. Schwick, Roberto Vega
Resurgent-transseries solutions to Painleve equations may be recursively constructed out of these nonlinear differential-equations -- but require Stokes data to be globally defined over the complex plane. Stokes data explicitly construct connection-formulae which describe the nonlinear Stokes phenomena associated to these solutions, via implementation of Stokes transitions acting on the transseries. Nonlinear resurgent Stokes data lack, however, a first-principle computational approach, hence are hard to determine generically. In the Painleve I and Painleve II contexts, nonlinear Stokes data get further hindered as these equations are resonant, with non-trivial consequences for the interconnections between transseries sectors, bridge equations, and associated Stokes coefficients. In parallel to this, the Painleve I and Painleve II equations are string-equations for two-dimensional quantum (super) gravity and minimal string theories, where Stokes data have natural ZZ-brane interpretations. This work computes for the first time the complete, analytical, resurgent Stokes data for the first two Painleve equations, alongside their quantum gravity or minimal string incarnations. The method developed herein, dubbed"closed-form asymptotics", makes sole use of resurgent large-order asymptotics of transseries solutions -- alongside a careful analysis of the role resonance plays. Given its generality, it may be applicable to other distinct (nonlinear, resonant) problems. Results for analytical Stokes coefficients have natural structures, which are described, and extensive high-precision numerical tests corroborate all analytical predictions. Connection-formulae are explicitly constructed, with rather simple and compact final results encoding the full Stokes data, and further allowing for exact monodromy checks -- hence for an analytical proof of our results.
Painleve方程的重新生成的转换序列解可以从这些非线性微分方程中递归构建出来,但需要在复平面上全局定义Stokes数据。斯托克斯数据通过实现作用于转换序列的斯托克斯跃迁,明确地构建了描述与这些解相关的非线性斯托克斯现象的连接公式。然而,非线性复活的斯托克斯数据缺乏第一性原理的计算方法,因此很难通用地确定。在Painleve I和Painleve II的情况下,非线性斯托克斯数据会受到进一步的阻碍,因为这些方程是共振的,对跨序列扇区、桥接方程和相关斯托克斯系数之间的互连产生了不小的影响。与此平行,Painleve I和Painleve II方程是二维量子(超)引力和最小弦理论的弦方程,其中Stokes数据具有自然的ZZ膜解释。这项工作首次计算了前两个Painleve方程的完整、分析、复活的Stokes数据,以及它们的量子引力或最小弦的化身。本文开发的方法被称为“闭合形式渐近线”,它只利用了跨序列解的复活大阶渐近线,同时仔细分析了共振所起的作用。鉴于其普遍性,它可能适用于其他不同的(非线性、共振)问题。分析斯托克斯系数的结果具有所描述的自然结构,并且大量的高精度数值测试证实了所有的分析预测。连接公式是明确构建的,具有相当简单和紧凑的最终结果,对完整的斯托克斯数据进行编码,并进一步允许精确的单调性检查——因此可以对我们的结果进行分析证明。
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引用次数: 2
Fourier expansions of vector-valued automorphic functions with non-unitary twists 具有非幺正扭转的向量值自同构函数的傅里叶展开式
IF 1.9 3区 数学 Q1 MATHEMATICS Pub Date : 2022-01-12 DOI: 10.4310/CNTP.2023.v17.n1.a5
Ksenia Fedosova, A. Pohl, J. Rowlett
We provide Fourier expansions of vector-valued eigenfunctions of the hyperbolic Laplacian that are twist-periodic in a horocycle direction. The twist may be given by any endomorphism of a finite-dimensional vector space; no assumptions on invertibility or unitarity are made. Examples of such eigenfunctions include vector-valued twisted automorphic forms of Fuchsian groups. We further provide a detailed description of the Fourier coefficients and explicitly identify each of their constituents, which intimately depend on the eigenvalues of the twisting endomorphism and the size of its Jordan blocks. In addition, we determine the growth properties of the Fourier coefficients.
我们给出了在环方向上扭曲周期的双曲拉普拉斯向量值特征函数的傅里叶展开式。扭转可以由有限维向量空间的任何自同态给出;没有对可逆性或唯一性的假设。这种特征函数的例子包括Fuchsian群的向量值扭曲自同构形式。我们进一步提供了傅里叶系数的详细描述,并明确地确定了它们的每个组成部分,这些组成部分密切依赖于扭转自同态的特征值及其乔丹块的大小。此外,我们确定了傅里叶系数的增长特性。
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引用次数: 1
On quasi-tame Looijenga pairs 关于拟驯服的Looijenga对
IF 1.9 3区 数学 Q1 MATHEMATICS Pub Date : 2022-01-05 DOI: 10.4310/cntp.2023.v17.n2.a3
A. Brini, Yannik Schuler
We prove a conjecture of Bousseau, van Garrel and the first-named author relating, under suitable positivity conditions, the higher genus maximal contact log Gromov-Witten invariants of Looijenga pairs to other curve counting invariants of Gromov-Witten/Gopakumar-Vafa type. The proof consists of a closed-form $q$-hypergeometric resummation of the quantum tropical vertex calculation of the log invariants in presence of infinite scattering. The resulting identity of $q$-series appears to be new and of independent combinatorial interest.
在适当的正性条件下,证明了Bousseau、van Garrel等人关于Looijenga对的高格极大接触对数Gromov-Witten不变量与其他Gromov-Witten/Gopakumar-Vafa型曲线计数不变量的一个猜想。该证明由无限散射存在下对数不变量的量子热带顶点计算的一个闭合形式$q$-超几何恢复组成。由此得到的$q$系列的恒等式似乎是新的,具有独立的组合意义。
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引用次数: 2
$T overline{T}$-deformed modular forms $Toverline{T}$-变形模块形式
IF 1.9 3区 数学 Q1 MATHEMATICS Pub Date : 2022-01-03 DOI: 10.4310/CNTP.2022.v16.n3.a1
J. Cardy
: Certain objects of conformal field theory, for example partition functions on the rectangle and the torus, and one-point functions on the torus, are either invariant or transform simply under the modular group, properties which should be preserved under the T T deformation. The formulation and proof of this statement in fact extents to more general functions such as T T deformed modular and Jacobi forms. We show that the deformation acts simply on their Mellin transform, multiplying it by a universal entire function. Finally we show that Maass forms on the torus are eigenfunctions of the T T deformation.
保形场论的某些对象,如矩形和环面上的配分函数,环面上的一点函数,在模群下是不变的或单变换的,这些性质在T - T变形下应保持。这个表述的表述和证明实际上扩展到更一般的函数,如T - T变形模和雅可比形式。我们证明变形仅仅作用于它们的Mellin变换,将其乘以一个通用的整个函数。最后,我们证明了环面上的质量形式是T - T变形的特征函数。
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引用次数: 0
On a class of non-simply connected Calabi-Yau $3$-folds with positive Euler characteristic 一类具有正欧拉特征的非单连通Calabi-Yau $3$-折叠
IF 1.9 3区 数学 Q1 MATHEMATICS Pub Date : 2022-01-01 DOI: 10.4310/cntp.2022.v16.n1.a-karayayla
Tolga Karayayla
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引用次数: 1
On the mixed-twist construction and monodromy of associated Picard–Fuchs systems 关于相关Picard-Fuchs系统的混合扭曲结构和单调性
IF 1.9 3区 数学 Q1 MATHEMATICS Pub Date : 2021-08-16 DOI: 10.4310/CNTP.2022.v16.n3.a2
Andreas Malmendier, Michael T. Schultz
. We use the mixed-twist construction of Doran and Malmendier to obtain a multi-parameter family of K3 surfaces of Picard rank ρ ≥ 16. Upon identifying a particular Jacobian elliptic fibration on its general member, we determine the lattice polarization and the Picard-Fuchs system for the family. We construct a sequence of restrictions that lead to extensions of the polarization by two-elementary lattices. We show that the Picard-Fuchs operators for the restricted families coincide with known resonant hypergeometric systems. Second, for the one-parameter mirror families of deformed Fermat hypersurfaces we show that the mixed-twist construction produces a non-resonant GKZ system for which a basis of solutions in the form of absolutely convergent Mellin-Barnes integrals exists whose monodromy we compute explicitly.
.我们使用Doran和Malmendier的混合扭曲构造,得到了Picard秩ρ≥16的K3曲面的多参数族。在确定其一般成员上的特定雅可比椭圆振动后,我们确定了该族的晶格极化和Picard-Fuchs系统。我们构造了一系列的限制,这些限制导致两个基本晶格的极化扩展。我们证明了限制族的Picard-Fuchs算子与已知的共振超几何系统是一致的。其次,对于变形Fermat超曲面的单参数镜像族,我们证明了混合扭曲结构产生了一个非共振GKZ系统,对于该系统,存在绝对收敛Mellin-Barnes积分形式的解的基,我们显式计算了其单调性。
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引用次数: 0
KP hierarchy for Hurwitz-type cohomological field theories hurwitz型上同场理论的KP层次
IF 1.9 3区 数学 Q1 MATHEMATICS Pub Date : 2021-07-12 DOI: 10.4310/cntp.2023.v17.n2.a1
Reinier Kramer
We generalise a result of Kazarian regarding Kadomtsev-Petviashvili integrability for single Hodge integrals to general cohomological field theories related to Hurwitz-type counting problems or hypergeometric tau-functions. The proof uses recent results on the relations between hypergeometric tau-functions and topological recursion, as well as the Eynard-DOSS correspondence between topological recursion and cohomological field theories. In particular, we recover the result of Alexandrov of KP integrability for triple Hodge integrals with a Calabi-Yau condition.
我们将Kazarian关于单Hodge积分Kadomtsev-Petviashvili可积性的结果推广到与hurwitz型计数问题或超几何τ函数相关的一般上同场理论。该证明使用了超几何tau函数与拓扑递归之间关系的最新结果,以及拓扑递归与上同场理论之间的Eynard-DOSS对应关系。特别地,我们恢复了具有Calabi-Yau条件的三重Hodge积分的KP可积性的Alexandrov结果。
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引用次数: 2
Degeneracy and hidden symmetry for the asymmetric quantum Rabi model with integral bias 具有积分偏置的非对称量子Rabi模型的退化性和隐藏对称性
IF 1.9 3区 数学 Q1 MATHEMATICS Pub Date : 2021-06-16 DOI: 10.4310/CNTP.2022.v16.n3.a4
Cid Reyes-Bustos, M. Wakayama
The hidden symmetry of the asymmetric quantum Rabi model (AQRM) with a half-integral bias (ibQRM (cid:96) ) was uncovered in recent studies by the explicit construction of operators J (cid:96) commuting with the Hamiltonian. The existence of such symmetry has been widely believed to cause the degeneration of the spectrum, that is, the crossings on the energy curves. In this paper we propose a conjectural relation between the symmetry and degeneracy for the ibQRM (cid:96) given explicitly in terms of two polynomials appearing independently in the respective investigations. Concretely, one of the polynomials appears as the quotient of the constraint polynomials that assure the existence of degenerate solutions while the other determines a quadratic relation (in general, it defines a curve of hyperelliptic type) between the ibQRM (cid:96) Hamiltonian and its basic commuting operator J (cid:96) . Following this conjecture, we derive several interesting structural insights of the whole spectrum. For instance, the energy curves are naturally shown to lie on a surface determined by the family of hyperelliptic curves by considering the coupling constant as a variable. This geometric picture contains the generalization of the parity decomposition of the symmetric quantum Rabi model. Moreover, it allows us to describe a remarkable approximation of the first (cid:96) energy curves by the zero-section of the corresponding hyperelliptic curve. These investigations naturally lead to a geometric picture of the (hyper-)elliptic surfaces given by the Kodaira-N´eron type model for a family of curves over the projective line in connection with the energy curves, which may be expected to provide a complex analytic proof of the conjecture.
利用与哈密顿量交换的算子J (cid:96)的显式构造,揭示了半积分偏置的非对称量子Rabi模型(ibQRM (cid:96))的隐对称性。这种对称性的存在被广泛认为是导致光谱退化的原因,即能量曲线上的交叉。在本文中,我们提出了ibQRM (cid:96)的对称性和简并性之间的推测关系,该关系是用在各自研究中独立出现的两个多项式来明确给出的。具体来说,其中一个多项式表现为保证退化解存在的约束多项式的商,而另一个多项式确定ibQRM (cid:96)哈密顿量与其基本交换算子J (cid:96)之间的二次关系(一般来说,它定义了一条超椭圆型曲线)。根据这个猜想,我们得出了整个光谱的几个有趣的结构见解。例如,考虑耦合常数作为变量,能量曲线自然地显示在由超椭圆曲线族确定的表面上。这幅几何图包含了对称量子Rabi模型宇称分解的推广。此外,它允许我们用相应的超椭圆曲线的零段来描述第一能量曲线(cid:96)的显著近似。这些研究自然导致了一个(超)椭圆曲面的几何图像,该图像由Kodaira-N´eron型模型给出,该模型用于与能量曲线相关的射影线上的曲线族,这可能有望为猜想提供复杂的解析证明。
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引用次数: 9
期刊
Communications in Number Theory and Physics
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