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Representations of a reductive p-adic group incharacteristic distinct from p 不同于p的约化p进群的特征表示
IF 0.9 Q2 MATHEMATICS Pub Date : 2020-10-13 DOI: 10.2140/tunis.2022.4.249
G. Henniart, Marie-France Vign'eras
We investigate the irreducible cuspidal $C$-representations of a reductive $p$-adic group $G$ over a field $C$ of characteristic different from $p$. When $C$ is algebraically closed, for many groups $G$, a list of cuspidal $C$-types $(J,lambda)$ has been produced satisfying exhaustion, sometimes for a restricted kind of cuspidal representations, and often unicity. We verify that those lists verify Aut($C$)-stability and we produce similar lists when $C$ is no longer assumed algebraically closed. Our other main results concern supercuspidality. This notion makes sense for the representations $lambda$ in the cuspidal $C$-types $(J,lambda)$ as above, which involve finite reductive groups. We check that an irreducible cuspidal representation of $G$ induced from $lambda$ is supercuspidal if and only $lambda$ is supercuspidal.
我们研究了特征不同于$p$的域$C$上的还原$p$adic群$G$的不可约尖$C$表示。当$C$是代数闭的时,对于许多群$G$,已经产生了一个满足穷举的尖点$C$-类型$(J,lambda)$的列表,有时对于一种受限的尖点表示,并且通常是唯一性。我们验证了这些列表验证了Aut($C$)-稳定性,并且当$C$不再被假设为代数闭合时,我们产生了类似的列表。我们的其他主要结果涉及超悬浮性。这个概念对于上面的尖$C$-类型$(J,lambda)$中的表示$lambda$是有意义的,它们涉及有限的归约群。我们检验了由$lambda$诱导的$G$的不可约尖表示是超尖叶的,当且只有$lambda$是超尖叶形的。
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引用次数: 2
Twisted differential operators of negative level and prismatic crystals 负能级和棱柱晶体的扭曲微分算子
IF 0.9 Q2 MATHEMATICS Pub Date : 2020-10-09 DOI: 10.2140/tunis.2022.4.19
Michel Gros, B. L. Stum, Adolfo Quir'os
We introduce twisted differential calculus of negative level and prove a descent theorem: Frobenius pullback provides an equivalence between finitely presented modules endowed with a topologically quasi-nilpotent twisted connection of level minus one and those of level zero. We explain how this is related to the existence of a Cartier operator on prismatic crystals. For the sake of readability, we limit ourselves to the case of dimension one.
引入负能级的扭曲微分,证明了一个下降定理:Frobenius回拉给出了具有拓扑拟幂零的负能级扭曲连接的有限呈现模与零能级扭曲连接之间的等价。我们解释了这与棱镜晶体上卡地亚算子的存在是如何相关的。为了便于阅读,我们将自己限制在维度1的情况下。
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引用次数: 3
Central limit theorem for a critical multitype branching process in random environments 随机环境下临界多型分支过程的中心极限定理
IF 0.9 Q2 MATHEMATICS Pub Date : 2020-06-19 DOI: 10.2140/tunis.2021.3.801
E. L. Page, M. Peign'e, C. Pham
Let (Z n) n≥0 with Z n = (Z n (i, j)) 1≤i,j≤p be a p multi-type critical branching process in random environment, and let M n be the expectation of Z n given a fixed environment. We prove theorems on convergence in distribution of sequences of branching processes Zn |Mn| /|Z n | > 0 and ln Zn √ n /|Z n | > 0. These theorems extend similar results for single-type critical branching process in random environment.
让Z Z (n) n≥0和n = (Z (i, j) 1≤i, j≤p be a p multi-type连接branching的过程中随机环境,期待》,让M n是Z a n赐予固定环境。我们在distribution of sequences of证明theorems on集的branching processes Zn | Mn | n - Z | | > 0和ln Zn√n - Z | | > 0。这些版本也保留了类似于在随机环境中克隆过程的特性。
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引用次数: 2
Large facing tuples and a strengthened sector lemma 大的面向元组和强化的扇区引理
IF 0.9 Q2 MATHEMATICS Pub Date : 2020-05-19 DOI: 10.2140/tunis.2022.4.55
M. Hagen
We prove a strengthened sector lemma for irreducible, finite-dimensional, locally finite, essential, cocompact CAT(0) cube complexes under the additional hypothesis that the complex is emph{hyperplane-essential}; we prove that every quarterspace contains a halfspace. In aid of this, we present simplified proofs of known results about loxodromic isometries of the contact graph, avoiding the use of disc diagrams. This paper has an expository element; in particular, we collect results about cube complexes proved by combining Ramsey's theorem and Dilworth's theorem. We illustrate the use of these tricks with a discussion of the Tits alternative for cubical groups, and ask some questions about ``quantifying'' statements related to rank-rigidity and the Tits alternative.
在复形是emph{超}平面必要的附加假设下,证明了不可约有限维局部有限必要紧致CAT(0)立方复形的一个强化扇形引理;我们证明了每个四分空间都包含一个半空间。在这方面的援助,我们提出了简化证明已知结果的直线等距的接触图,避免使用圆盘图。这篇论文有解释性的成分;特别地,我们收集了由Ramsey定理和Dilworth定理组合证明的立方体配合物的结果。我们通过讨论立方群的Tits替代来说明这些技巧的使用,并提出一些关于与等级刚性和Tits替代相关的“量化”陈述的问题。
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引用次数: 7
Duality relations among multiple series with three parameters 三参数多级数之间的对偶关系
IF 0.9 Q2 MATHEMATICS Pub Date : 2020-01-01 DOI: 10.2140/TUNIS.2020.2.217
M. Igarashi
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引用次数: 2
The Markov sequence problem for the Jacobi polynomials and on the simplex 雅可比多项式和单纯形上的马尔可夫序列问题
IF 0.9 Q2 MATHEMATICS Pub Date : 2020-01-01 DOI: 10.2140/tunis.2020.2.535
D. Bakry, L. Mbarki
We provide a simplified proof of the hypergroup property for the Jacobi polynomials on the unit interval, and investigate various generalizations of this property for the family of Dirichlet laws on the simplex.
我们提供了单位区间上Jacobi多项式的超群性质的简化证明,并研究了单纯形上Dirichlet定律族的这种性质的各种推广。
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引用次数: 3
Semiclassical approximation of the magnetic Schrödinger operator on a strip : dynamics and spectrum 带上磁性薛定谔算子的半经典近似:动力学和谱
IF 0.9 Q2 MATHEMATICS Pub Date : 2020-01-01 DOI: 10.2140/TUNIS.2020.2.197
M. Dimassi
In the semiclassical regime (i.e., (cid:15) (cid:38) 0), we study the effect of a slowly varying potential V ((cid:15) t , (cid:15) z ) on the magnetic Schrödinger operator P = D 2 x + ( D z + µ x ) 2 on a strip [− a , a ] × (cid:82) z . The potential V ( t , z ) is assumed to be smooth. We derive the semiclassical dynamics and we describe the asymptotic structure of the spectrum and the resonances of the operator P + V ((cid:15) t , (cid:15) z ) for (cid:15) small enough. All our results depend on the eigenvalues corresponding to D 2 x + (µ x + k ) 2 on L 2 ( [− a , a ] ) with Dirichlet boundary condition. x ≤ a } . The Fourier transfor-mation with respect to z reduces the spectral problem of P to an analysis of the ( k depending) eigenvalues E 0 ( k ), E 1 ( k ), . . . of the Sturm-Liouville operator on the interval [− a , a ] with Dirichlet boundary condition at − a and a .
在半经典区(即(cid:15) (cid:38) 0)中,我们研究了慢变电位V ((cid:15) t, (cid:15) z)对条带[- a, a] × (cid:82) z上的磁Schrödinger算符P = d2 x + (D z +µx) 2的影响。假设势能V (t, z)是光滑的。我们导出了半经典动力学,并描述了谱的渐近结构和算子P + V ((cid:15) t, (cid:15) z)在(cid:15)足够小时的共振。我们所有的结果都依赖于d2 +(µx + k) 2在l2([−a, a])上对应的特征值,并具有Dirichlet边界条件。X≤a}。关于z的傅里叶变换将P的频谱问题简化为(取决于k的)特征值e0 (k), e1 (k),…的分析。在- a和- a处具有Dirichlet边界条件的区间[- a, a]上Sturm-Liouville算子的性质。
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引用次数: 0
Descent for nonarchimedean analytic spaces 非阿基米德解析空间的下降
IF 0.9 Q2 MATHEMATICS Pub Date : 2019-12-12 DOI: 10.2140/tunis.2021.3.689
B. Conrad, M. Temkin
In this paper we study two types of descent in the category of Berkovich analytic spaces: flat descent and descent with respect to an extension of the ground field. Quite surprisingly, the deepest results in this direction seem to be of the second type, including the descent of properties of being a good analytic space and being a morphism without boundary.
在本文中,我们研究了Berkovich分析空间范畴中的两种下降类型:平坦下降和关于地场扩展的下降。令人惊讶的是,在这个方向上最深的结果似乎是第二类,包括作为一个好的分析空间和作为一个无边界的态射的性质的下降。
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引用次数: 7
The monodromy pairing for logarithmic1-motifs 对数1-基元的单配对
IF 0.9 Q2 MATHEMATICS Pub Date : 2019-12-09 DOI: 10.2140/tunis.2022.4.587
Jonathan Wise
We describe a 3-step filtration on all logarithmic abelian varieties with constant degeneration. The obstruction to descending this filtration, as a variegated extension, from logarithmic geometry to algebraic geometry is encoded in a bilinear pairing valued in the characteristic monoid of the base. This pairing is realized as the monodromy pairing in p-adic, l-adic, and Betti cohomolgies, and recovers the Picard-Lefschetz transformation in the case of Jacobians. The Hodge realization of the filtration is the monodromy weight filtration on the limit mixed Hodge structure.
我们描述了对所有具有恒定退化的对数阿贝尔品种的三步过滤。作为从对数几何到代数几何的一个杂色扩展,这种过滤的下降障碍被编码在基的特征半群中的双线性配对中。该配对在p-adic、l-adic和Betti上同调中被实现为单调配对,并在Jacobians的情况下恢复了Picard-Lefschetz变换。过滤的Hodge实现是在极限混合Hodge结构上的单重过滤。
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引用次数: 0
Square root p-adic L-functions, I : Constructionof a one-variable measure 平方根p进l函数,I:单变量测度的构造
IF 0.9 Q2 MATHEMATICS Pub Date : 2019-11-05 DOI: 10.2140/tunis.2021.3.657
M. Harris
The Ichino-Ikeda conjecture, and its generalization to unitary groups by N. Harris, has given explicit formulas for central critical values of a large class of Rankin-Selberg tensor products. Although the conjecture is not proved in full generality, there has been considerable progress, especially for $L$-values of the form $L(1/2,BC(pi) times BC(pi'))$, where $pi$ and $pi'$ are cohomological automorphic representations of unitary groups $U(V)$ and $U(V')$, respectively. Here $V$ and $V'$ are hermitian spaces over a CM field, $V$ of dimension $n$, $V'$ of codimension $1$ in $V$, and $BC$ denotes the twisted base change to $GL(n) times GL(n-1)$. This paper contains the first steps toward generalizing the construction of my paper with Tilouine on triple product $L$-functions to this situation. We assume $pi$ is a holomorphic representation and $pi'$ varies in an ordinary Hida family (of antiholomorphic forms). The construction of the measure attached to $pi$ uses recent work of Eischen, Fintzen, Mantovan, and Varma.
Ichino-Ikeda猜想及其N.Harris对酉群的推广,给出了一大类Rankin-Selberg张量积中心临界值的显式公式。尽管该猜想没有得到充分的普遍性证明,但已经取得了相当大的进展,特别是对于形式为$L(1/2,BC(pi)乘以BC(pi')$的$L$-值,其中$pi$和$pi'$分别是酉群$U(V)$和$U(V')$上同调自同构表示。这里$V$和$V'$是CM域上的hermitian空间,$V$中的维度$n$的$V$,余维度$1$的$V'$,并且$BC$表示到$GL(n)乘以GL(n-1)$的扭曲基变化。本文包含了将我的论文的构造用Tilouine关于三乘积$L$-函数推广到这种情况的第一步。我们假设$pi$是全纯表示,并且$pi'$在普通Hida族(反全纯形式)中变化。$pi$所附措施的构建使用了Eischen、Fintzen、Mantovan和Varma最近的工作。
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引用次数: 1
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Tunisian Journal of Mathematics
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