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Related papers: p-adic uniformization of unitary Shimura varieties

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We construct natural extensions of the Kudla--Millson generating series of cohomology classes of special cycles in compactified unitary Shimura varieties of signature $(n+1,1)$ and prove that they are holomorphic Hermitian modular forms.…

Number Theory · Mathematics 2026-05-29 François Greer , Salim Tayou

For an abelian variety $A$ over an algebraically closed non-archimedean field $K$ of residue characteristic $p$, we show that the isomorphism class of the pro-\'etale perfectoid cover $\widetilde A=\varprojlim_{[p]}A$ is locally constant as…

Algebraic Geometry · Mathematics 2021-05-27 Ben Heuer

We provide a constructive, variational proof of Rivin's realization theorem for ideal hyperbolic polyhedra with prescribed intrinsic metric, which is equivalent to a discrete uniformization theorem for spheres. The same variational method…

Metric Geometry · Mathematics 2025-01-07 Boris Springborn

This work is the first part in a series of three dedicated to the foundations of integral aspects of Shimura varieties and of Fontaine's categories. It deals mostly with the unramified context of (arbitrary) mixed characteristic (0,p).…

Number Theory · Mathematics 2007-05-23 Adrian Vasiu

We exhibit a simple uniruledness criterion for general orthogonal modular varieties in terms of invariants of the corresponding lattice. As an application, we obtain the uniruledness of almost all Nikulin--Vinberg moduli spaces…

Algebraic Geometry · Mathematics 2025-03-21 Ignacio Barros

We show that the compactly supported cohomology of Shimura varieties of Hodge type of infinite $\Gamma_1(p^\infty)$-level (defined with respect to a Borel subgroup) vanishes above the middle degree, under the assumption that the group of…

Number Theory · Mathematics 2025-01-17 Ana Caraiani , Daniel R. Gulotta , Christian Johansson

In this article, we study admissible representations of even unitary groups over local fields, where the quadratic extension is ramified, with invariant vectors under the action of the stabilizer of a unimodular lattice and some properties…

Number Theory · Mathematics 2026-05-21 Zhuoni Chi

We study the observability of the Schr\"odinger equation on $X$, a non-compact covering space of a compact hyperbolic surface $M$. Using a generalized Bloch theory, functions on $X$ are identified as sections of flat Hilbert bundles over…

Analysis of PDEs · Mathematics 2026-04-07 Xin Fu , Yulin Gong , Yunlei Wang

We begin by introducing schemes of binoids, invertible $\mathcal{O}_M$-sets and cohomology of sheaves of abelian groups defined on schemes of binoids. We define the so-called punctured combinatorial \v{C}ech-Picard complex, whose first…

Commutative Algebra · Mathematics 2016-11-09 Davide Alberelli

We show that the mod p cohomology of a smooth projective variety with semistable reduction over K, a finite extension of Qp, embeds into the reduction modulo p of a semistable Galois representation with Hodge-Tate weights in the expected…

Number Theory · Mathematics 2016-01-20 Matthew Emerton , Toby Gee

We prove a statement of Ax-Lindemann type for the uniformization of products of Mumford curves whose associated fundamental groups are non-abelian Schottky subgroups of $\mathop{\rm PGL}(2,\bar{\mathbf Q_p})$ contained in $\mathop{\rm…

Algebraic Geometry · Mathematics 2018-01-08 Antoine Chambert-Loir , François Loeser

This article generalises to K\"ahler orbifolds general results on uniformisation of compact K\"ahler manifolds such as the Shafarevich conjecture for linear fundamental groups.

Algebraic Geometry · Mathematics 2013-02-21 Philippe Eyssidieux

Given a field $K$ equipped with a set of discrete valuations $V$, we develop a general theory to relate reduction properties of skew-hermitian forms over a quaternion $K$-algebra $Q$ to quadratic forms over the function field $K(Q)$…

Algebraic Geometry · Mathematics 2020-08-26 Srimathy Srinivasan

In this paper, we prove the bounded case of the Andre-Oort conjecture for special subvarieties in a mixed Shimura variety. This generalizes previous results of L. Clozel, E. Ullmo, and A. Yafaev. The proof is reduced to a special case of…

Number Theory · Mathematics 2014-03-25 K. Chen

In this article, we derive estimates of Teichm\"uller modular forms, and associated invariants. Let $\mathcal{M}_{g}$ denote the moduli space of compact hyperbolic Riemann surfaces of genus $g\geq 2$, and let $\overline{M}_{g}$ be the…

Complex Variables · Mathematics 2024-12-19 Anilatmaja Aryasomayajula , Debasish Sadhukhan

We discuss and extend some of the results obtained in "Arakelov inequalities and the uniformization of certain rigid Shimura varieties" (math.AG/0503339), restricting ourselves to the two dimensional case, i.e. to surfaces Y mapping…

Algebraic Geometry · Mathematics 2007-05-23 Eckart Viehweg , Kang Zuo

The main goal of this article is to give an explicit rigid analytic uniformization of the maximal toric quotient of the Jacobian of a Shimura curve over the field of rational numbers at a prime dividing exactly the level. This result can be…

Number Theory · Mathematics 2010-10-07 M. Longo , V. Rotger , S. Vigni

We study the geometry of unitary Shimura varieties without assuming the existence of an ordinary locus. We prove, by a simple argument, the existence of canonical subgroups on a strict neighborhood of the $\mu$-ordinary locus (with an…

Number Theory · Mathematics 2016-12-16 Stéphane Bijakowski

We consider cycles on a 3-dimensional Shimura varieties attached to a unitary group, defined over extensions of a CM field $E$, which appear in the context of the conjectures of Gan, Gross, and Prasad \cite{gan-gross-prasad}. We establish a…

Number Theory · Mathematics 2016-04-12 Reda Boumasmoud , Ernest Hunter Brooks , Dimitar Jetchev

We prove an arithmetic Hilbert-Samuel type theorem for semi-positive singular hermitian line bundles of finite height. In particular, the theorem applies to the log-singular metrics of Burgos-Kramer-K\"uhn. Our theorem is thus suitable for…

Number Theory · Mathematics 2019-02-20 Robert Berman , Gerard Freixas i Montplet