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AUTOMORPHIC LEFSCHETZ PROPERTIES FOR NONCOMPACT ARITHMETIC MANIFOLDS 非紧算术流形的自同构LEFSCHETZ性质
IF 0.9 2区 数学 Q1 MATHEMATICS Pub Date : 2021-10-18 DOI: 10.1017/S1474748021000499
A. Nair, Ankit Rai
Abstract We prove the injectivity of Oda-type restriction maps for the cohomology of noncompact congruence quotients of symmetric spaces. This includes results for restriction between (1) congruence real hyperbolic manifolds, (2) congruence complex hyperbolic manifolds, and (3) orthogonal Shimura varieties. These results generalize results for compact congruence quotients by Bergeron and Clozel [Quelques conséquences des travaux d’Arthur pour le spectre et la topologie des variétés hyperboliques, Invent. Math. 192 (2013), 505–532] and Venkataramana [Cohomology of compact locally symmetric spaces, Compos. Math. 125 (2001), 221–253]. The proofs combine techniques of mixed Hodge theory and methods involving automorphic forms.
摘要我们证明了对称空间的非紧同余商的上同调的Oda型限制映射的内射性。这包括了(1)同余实双曲流形、(2)同余复双曲流形和(3)正交Shimura变种之间的约束结果。这些结果推广了Bergeron和Clozel[Quelques conséSequences des travaux d’Arthur pour le spectre et la topologie des variétés双曲线,Invent.Math.192(2013),505–532]和Venkataramana[紧致局部对称空间的同调,Compos.Math.125(2001),221–253]关于紧致同调商的结果。这些证明结合了混合Hodge理论的技术和涉及自同构形式的方法。
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引用次数: 0
SHUFFLE ALGEBRAS FOR QUIVERS AND R-MATRICES 颤振和r -矩阵的洗牌代数
IF 0.9 2区 数学 Q1 MATHEMATICS Pub Date : 2021-09-29 DOI: 10.1017/S1474748022000184
Andrei Neguț
Abstract We define slope subalgebras in the shuffle algebra associated to a (doubled) quiver, thus yielding a factorization of the universal R-matrix of the double of the shuffle algebra in question. We conjecture that this factorization matches the one defined by [1, 18, 32, 33, 34] using Nakajima quiver varieties.
摘要我们定义了混洗代数中与(双)箭袋相关的斜率子代数,从而得到了所讨论的混洗代数的双的泛R矩阵的因子分解。我们推测这个因子分解与[1,18,32,33,34]使用Nakajima箭袋变种定义的因子分解相匹配。
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引用次数: 3
THE OPTIMAL MALLIAVIN-TYPE REMAINDER FOR BEURLING GENERALIZED INTEGERS bourling广义整数的最优malliavin型余数
IF 0.9 2区 数学 Q1 MATHEMATICS Pub Date : 2021-09-17 DOI: 10.1017/s147474802200038x
Frederik Broucke, Gregory Debruyne, J. Vindas
We establish the optimal order of Malliavin-type remainders in the asymptotic density approximation formula for Beurling generalized integers. Given $alpha in (0,1]$ and $c>0$ (with $cleq 1$ if $alpha =1$ ), a generalized number system is constructed with Riemann prime counting function $ Pi (x)= operatorname {mathrm {Li}}(x)+ O(xexp (-c log ^{alpha } x ) +log _{2}x), $ and whose integer counting function satisfies the extremal oscillation estimate $N(x)=rho x + Omega _{pm }(xexp (- c'(log xlog _{2} x)^{frac {alpha }{alpha +1}})$ for any $c'>(c(alpha +1))^{frac {1}{alpha +1}}$ , where $rho>0$ is its asymptotic density. In particular, this improves and extends upon the earlier work [Adv. Math. 370 (2020), Article 107240].
在Beurling广义整数的渐近密度近似公式中,我们建立了Malliavin型余数的最优阶。给定$alphain(0,1]$和$c>0$(如果$alpha=1$,则$cleq为1$),用黎曼素数计数函数$Pi(x)=operatorname{mathrm{Li}}(x)+O(xexp(-clog^{alpha}x)+log构造了一个广义数系_{2}x),$,并且其整数计数函数满足任何$c'>(c(alpha+1))^{frac{1}{alpha+1}}$的极值振荡估计$N(x)=rho x+Omega_{pm}(xexp(-c'(logxlog_{2}x)^{frac{aalpha+1})$,其中$rho>0$是其渐近密度。特别是,这改进并扩展了早期的工作[Adv.Math.370(2020),文章107240]。
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引用次数: 1
INTEGRAL POINTS ON SINGULAR DEL PEZZO SURFACES 奇异DEL PEZZO曲面上的积分点
IF 0.9 2区 数学 Q1 MATHEMATICS Pub Date : 2021-09-14 DOI: 10.1017/S1474748022000482
U. Derenthal, Florian Wilsch
In order to study integral points of bounded log-anticanonical height on weak del Pezzo surfaces, we classify weak del Pezzo pairs. As a representative example, we consider a quartic del Pezzo surface of singularity type $mathbf {A}_1+mathbf {A}_3$ and prove an analogue of Manin’s conjecture for integral points with respect to its singularities and its lines.
为了研究弱del-Pezzo曲面上有界对数反正则高度的积分点,我们对弱del-Pazzo对进行了分类。作为一个代表性的例子,我们考虑奇异类型$mathbf的四次德尔佩佐曲面{A}_1+mathbf{A}_3$,并证明了关于积分点的奇点及其线的Manin猜想的类似性。
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引用次数: 2
JMJ volume 20 Issue 5 Cover and Front matter JMJ第20卷第5期封面和封面
IF 0.9 2区 数学 Q1 MATHEMATICS Pub Date : 2021-09-01 DOI: 10.1017/s1474748020000468
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引用次数: 0
JMJ volume 20 Issue 5 Cover and Back matter JMJ第20卷第5期封面和封底
IF 0.9 2区 数学 Q1 MATHEMATICS Pub Date : 2021-09-01 DOI: 10.1017/s147474802000047x
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引用次数: 0
CATEGORICAL AND K-THEORETIC HALL ALGEBRAS FOR QUIVERS WITH POTENTIAL 具有势的颤抖子的范畴和K-理论HALL代数
IF 0.9 2区 数学 Q1 MATHEMATICS Pub Date : 2021-07-28 DOI: 10.1017/S1474748022000111
Tudor Pădurariu
Abstract Given a quiver with potential $(Q,W)$ , Kontsevich–Soibelman constructed a cohomological Hall algebra (CoHA) on the critical cohomology of the stack of representations of $(Q,W)$ . Special cases of this construction are related to work of Nakajima, Varagnolo, Schiffmann–Vasserot, Maulik–Okounkov, Yang–Zhao, etc. about geometric constructions of Yangians and their representations; indeed, given a quiver Q, there exists an associated pair $(widetilde{Q}, widetilde{W})$ whose CoHA is conjecturally the positive half of the Maulik–Okounkov Yangian $Y_{text {MO}}(mathfrak {g}_{Q})$ . For a quiver with potential $(Q,W)$ , we follow a suggestion of Kontsevich–Soibelman and study a categorification of the above algebra constructed using categories of singularities. Its Grothendieck group is a K-theoretic Hall algebra (KHA) for quivers with potential. We construct representations using framed quivers, and we prove a wall-crossing theorem for KHAs. We expect the KHA for $(widetilde{Q}, widetilde{W})$ to recover the positive part of quantum affine algebra $U_{q}(widehat {mathfrak {g}_{Q}})$ defined by Okounkov–Smirnov.
摘要在给定具有势$(Q,W)$的颤动的情况下,Kontsevich–Soibelman在$(Q、W)$表示栈的临界上同调上构造了一个上同调Hall代数(CoHA)。这种构造的特殊情况与Nakajima、Varagnolo、Schiffmann–Vasselot、Maulik–Okounkov、Yang–赵等关于Yangians几何构造及其表征的工作有关;事实上,给定一个颤动Q,存在一个关联对$(widetilde{Q},widetide{W})$,其CoHA推测为Maulik–Okounkov Yangian$Y_{text{MO}}的正半部分(mathfrak{g}_{Q} )$。对于势为$(Q,W)$的颤动,我们遵循Kontsevich–Soibelman的建议,研究了用奇点类构造的上述代数的分类。它的Grothendieck群是具有势的颤动的K理论Hall代数(KHA)。我们使用框架颤动构造表示,并证明了KHA的一个穿墙定理。我们期望$(widetilde{Q},widetide{W})$的KHA恢复量子仿射代数$U_{Q}(widehat{mathfrak{g}_{Q} })$由Okounkov–Smirnov定义。
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引用次数: 26
ON NONCRITICAL GALOIS REPRESENTATIONS 关于非临界GALOIS表示
IF 0.9 2区 数学 Q1 MATHEMATICS Pub Date : 2021-07-22 DOI: 10.1017/S1474748021000268
Bingyong Xie
Abstract We propose a conjecture that the Galois representation attached to every Hilbert modular form is noncritical and prove it under certain conditions. Under the same condition we prove Chida, Mok and Park’s conjecture that Fontaine-Mazur L-invariant and Teitelbaum-type L-invariant coincide with each other.
摘要我们提出了一个猜想,即附加在每个Hilbert模形式上的Galois表示是非临界的,并在一定条件下证明了它。在相同条件下,我们证明了Chida、Mok和Park关于Fontaine-Mazur L-不变量和Teitelbaum型L-不变量一致的猜想。
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引用次数: 1
VARIANTS OF A MULTIPLIER THEOREM OF KISLYAKOV 基斯利亚科夫乘数定理的变体
IF 0.9 2区 数学 Q1 MATHEMATICS Pub Date : 2021-07-21 DOI: 10.1017/s1474748022000391
A. Defant, M. Mastyło, A. Pérez-Hernández
We prove stronger variants of a multiplier theorem of Kislyakov. The key ingredients are based on ideas of Kislyakov and the Kahane–Salem–Zygmund inequality. As a by-product, we show various multiplier theorems for spaces of trigonometric polynomials on the n-dimensional torus $mathbb {T}^n$ or Boolean cubes ${-1,1}^N$ . Our more abstract approach based on local Banach space theory has the advantage that it allows to consider more general compact abelian groups instead of only the multidimensional torus. As an application, we show that various recent $ell _1$ -multiplier theorems for trigonometric polynomials in several variables or ordinary Dirichlet series may be proved without the Kahane–Salem–Zygmund inequality.
我们证明了Kislyakov的一个乘数定理的更强变体。关键因素基于Kislyakov和Kahane–Salem–Zygmund不等式的思想。作为副产品,我们给出了n维环面$mathbb{T}^n$或布尔立方体${-1,1}^n$上三角多项式空间的各种乘法器定理。我们基于局部Banach空间理论的更抽象的方法的优点是,它允许考虑更一般的紧致阿贝尔群,而不仅仅是多维环面。作为一个应用,我们证明了在没有Kahane–Salem–Zygmund不等式的情况下,可以证明最近几个变量或普通Dirichlet级数中三角多项式的$ell_1$-乘子定理。
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引用次数: 0
COMBINED COUNT OF REAL RATIONAL CURVES OF CANONICAL DEGREE 2 ON REAL DEL PEZZO SURFACES WITH 实数曲面上典型次为2的实数有理曲线的组合计数
IF 0.9 2区 数学 Q1 MATHEMATICS Pub Date : 2021-07-14 DOI: 10.1017/s1474748022000317
S. Finashin, V. Kharlamov
We propose two systems of “intrinsic” weights for counting such curves. In both cases the result acquires an exceptionally strong invariance property: it does not depend on the choice of a surface. One of our counts includes all divisor classes of canonical degree 2 and gives in total 30. The other one excludes the class $-2K$ , but adds up the results of counting for a pair of real structures that differ by Bertini involution. This count gives 96.
我们提出了两个“内在”权重系统来计算这种曲线。在这两种情况下,结果都具有异常强的不变性:它不取决于曲面的选择。我们的一个计数包括规范度为2的所有除数类,总共给出30。另一个排除了类$-2K$,但将一对因Bertini对合而不同的实结构的计数结果相加。这个数字是96。
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引用次数: 1
期刊
Journal of the Institute of Mathematics of Jussieu
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