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Related papers: Asymptotics of degenerating Eisenstein series

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In this paper, we are interested in matrix valued orthogonal polynomials on the real line with respect to exponential weights. We obtain strong asymptotics as the degree tends to infinity in different regions of the complex plane, as well…

Classical Analysis and ODEs · Mathematics 2026-04-21 Alfredo Deaño , Pablo Román

It is explored a model of compact Riemann surfaces in genus two, represented geometrically by two-parametric hyperbolic octagons with an order four automorphism. We compute the generators of associated isometry group and give a…

Mathematical Physics · Physics 2013-01-24 A. V. Nazarenko

We classify tuples of (not necessarily commuting) isometries that admit von Neumann-Wold decomposition. We introduce the notion of twisted isometries for tuples of isometries and prove the existence of orthogonal decomposition for such…

Functional Analysis · Mathematics 2022-09-29 Narayan Rakshit , Jaydeb Sarkar , Mansi Suryawanshi

In this paper, we consider deformations of Lie 2-algebras via the cohomology theory. We prove that a 1-parameter infinitesimal deformation of a Lie 2-algebra $\g$ corresponds to a 2-cocycle of $\g$ with the coefficients in the adjoint…

Mathematical Physics · Physics 2015-06-16 Zhangju Liu , Yunhe Sheng , Tao Zhang

In this paper we compute the asymptotic behavior of the recurrence coefficients for polynomials orthogonal with respect to a logarithmic weight $w(x){\rm d}x = \log \frac{2k}{1-x}{\rm d}x$ on $(-1,1)$, $k > 1$, and verify a conjecture of…

Classical Analysis and ODEs · Mathematics 2018-06-13 Thomas Oliver Conway , Percy Deift

In a recent paper Ahlgren, Ono and Penniston described the L-series of K3 surfaces from a certain one parameter family in terms of those of a particular family of elliptic curves. The Tate conjecture predicts the existence of a…

Algebraic Geometry · Mathematics 2007-05-23 Bert van Geemen , Jaap Top

This manuscript has two goals: 1. To write an explicit description of the degenerate residual spectrum of the split, simple, simply-connected, exceptional groups of type $E_n$ (for $n=6,7,8$). 2. To set a practical guide for similar…

Representation Theory · Mathematics 2023-12-05 Hezi Halawi , Avner Segal

Asymptotic Schur orthogonality relations are for irreducible unitary representations of locally compact groups that need not be discrete series, where $L^2$ pairing of matrix coefficients with respect to Haar measure is replaced by a limit…

Representation Theory · Mathematics 2025-06-24 Malay Mandal , Arghya Mondal

The well-known asymptotic formula for the module of a condenser with one of the plates degenerating to a point is generalized to the case of a condenser of general type. The condensers under consideration consist of n plates, n > 2, and the…

Complex Variables · Mathematics 2011-10-18 V . N . Dubinin

We introduce new families of quandles that serve as invariants for classifying closed orientable surfaces. These families generalize the classical Dehn quandle and are defined, respectively, on isotopy classes of unoriented closed curves…

Geometric Topology · Mathematics 2026-02-20 Pankaj Kapari , Deepanshi Saraf , Mahender Singh

We study the residual Eisenstein cohomology of semisimple groups in the context of maximal parabolic subgroups which remain maximal over $\mathbb{R}$. Under certain general hypotheses, we show that these residual representations are…

Number Theory · Mathematics 2026-03-16 Sam Mundy

We study polynomials that are orthogonal with respect to a varying quartic weight \exp(-N(x^2/2+tx^4/4)) for t<0, where the orthogonality takes place on certain contours in the complex plane. Inspired by developments in 2D quantum gravity,…

Classical Analysis and ODEs · Mathematics 2010-07-30 Maurice Duits , Arno Kuijlaars

For Hamitonian systems with 3/2 degrees of freedom close to nonlinear integrable and for symplectic maps of the cylinder, bifurcations in degenerate resonance zones are discussed.

Dynamical Systems · Mathematics 2015-06-23 A. D. Morozov

I this paper we determine poles in the right--half plane and images of degenerate Eisenstein series for $GL_n(\Bbb A_\mathbb Q)$ induced from a character on a maximal parabolic subgroup. We apply those results to determine poles of…

Number Theory · Mathematics 2013-02-05 Marcela Hanzer , Goran Mui\' c

In this paper we study the minimal and maximal $L^{2}$-cohomology of oriented, possibly not complete, Riemannian manifolds. Our focus will be on both the reduced and the unreduced $L^{2}$-cohomology groups. In particular we will prove that…

Differential Geometry · Mathematics 2022-12-21 Stefano Spessato

We discuss the relationship between ratio asymptotics for general orthogonal polynomials and the asymptotics of the associated Bergman shift operator. More specifically, we consider the case in which a measure is supported on an infinite…

Classical Analysis and ODEs · Mathematics 2021-08-11 Brian Simanek

We determine the poles of maximal unramified degenerate Eisenstein series of a split semisimple algebraic group over a number field using a straightforward global argument, avoiding delicate analysis of intertwining operators.

Number Theory · Mathematics 2024-05-17 Devadatta G. Hegde

We classify compact Riemann surfaces of genus $g$, where $g-1$ is a prime $p$, which have a group of automorphisms of order $\rho(g-1)$ for some integer $\rho\ge 1$, and determine isogeny decompositions of the corresponding Jacobian…

Algebraic Geometry · Mathematics 2020-03-12 Milagros Izquierdo , Gareth A. Jones , Sebastián Reyes-Carocca

We define the Archimedean height pairing for fiberwise cohomologically trivial differential forms on a one-parameter degeneration of Riemann surfaces, and we study its asymptotic behavior. The proof relies on recent work by Dai--Yoshikawa…

Differential Geometry · Mathematics 2026-03-06 Junyu Cao

We discuss the existence of an absolute Chow-Kuenneth decomposition for complete degenerations of families of Abelian threefolds with complex multiplication over a particular Picard Modular Surface studied by Holzapfel. In addition to the…

Algebraic Geometry · Mathematics 2014-10-24 Andrea Miller , Stefan Müller-Stach , Sigrid Wortmann , Yi-Hu Yang , Kang Zuo