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This is part of a series of papers describing the new curve integral formalism for scattering amplitudes of the colored scalar tr$\phi^3$ theory. We show that the curve integral manifests a very surprising fact about these amplitudes: the…

High Energy Physics - Theory · Physics 2024-10-01 Nima Arkani-Hamed , Hadleigh Frost , Giulio Salvatori , Pierre-Guy Plamondon , Hugh Thomas

We discuss the potential scattering on the noncompact star graph. The Schr\"{o}dinger operator with the short-range potential localizing in a neighborhood of the graph vertex is considered. We study the asymptotic behavior the corresponding…

Spectral Theory · Mathematics 2015-05-19 Stepan Man'ko

We explore the analytic structure of the three-channel $S$ matrix by generalizing uniformization and making a single-valued map for the three-channel $S$ matrix. First, by means of the inverse Jacobi's elliptic function we construct a…

High Energy Physics - Phenomenology · Physics 2022-11-09 Wren A. Yamada , Osamu Morimatsu , Toru Sato

We construct p-adic Asai L-functions for cuspidal automorphic representations of GL2 / F, where F is a real quadratic field in which p splits. Our method relies on higher Hida theory for Hilbert modular surfaces with Iwahori level at one…

Number Theory · Mathematics 2026-01-08 Giada Grossi , David Loeffler , Sarah Livia Zerbes

Let $\phi$ be an $L^2$-normalized spherical vector in an everywhere unramified cuspidal automorphic representation of $\mathrm{PGL}_n$ over $\mathbb{Q}$ with Laplace eigenvalue $\lambda_{\phi}$. We establish explicit estimates for various…

Number Theory · Mathematics 2024-11-18 Valentin Blomer , Gergely Harcos , Péter Maga

We construct examples of p-adic L-functions over universal deformation spaces for GL(2). We formulate a conjecture predicting that the natural parameter spaces for p-adic L-functions are not the usual eigenvarieties (parametrising…

Number Theory · Mathematics 2023-09-15 David Loeffler

Let $F$ be a number field, and $\pi$ a regular algebraic cuspidal automorphic representation of $\mathrm{GL}_N(\mathbb{A}_F)$ of symplectic type. When $\pi$ is spherical at all primes $\mathfrak{p}|p$, we construct a $p$-adic $L$-function…

Number Theory · Mathematics 2026-04-30 Chris Williams

I apply the set-up of Lax-Phillips Scattering Theory to a non-archimedean local field. It is possible to choose the outgoing space and the incoming space to be Fourier transforms of each other. Key elements of the Lax-Phillips theory are…

Number Theory · Mathematics 2007-05-23 Jean-Francois Burnol

Any homogeneous polynomial $P(x, y, z)$ of degree $d$, being restricted to a unit sphere $S^2$, admits essentially a unique representation of the form $\lambda_0 + \sum_{k = 1}^d \lambda_k [\prod_{j = 1}^k L_{kj}]$, where $L_{kj}$'s are…

Complex Variables · Mathematics 2007-05-23 Gabriel Katz

Relation between generalized Weierstrass representation for conformal immersion of generic surfaces into three-dimensional space and Lax-Phillips scattering theory for automorphic functions is considered.

Mathematical Physics · Physics 2007-05-23 Vadim V. Varlamov

Let $\Pi$ be a regular algebraic cuspidal automorphic representation (RACAR) of $\mathrm{GL}_3(\mathbb{A}_{\mathbb{Q}})$. When $\Pi$ is $p$-nearly-ordinary for the maximal standard parabolic with Levi $\mathrm{GL}_1 \times \mathrm{GL}_2$,…

Number Theory · Mathematics 2026-03-12 David Loeffler , Chris Williams

Scattering amplitudes for colored theories have recently been formulated in a new way, in terms of curves on surfaces. In this note we describe a canonical set of functions we call surface functions, associated to all orders in the…

High Energy Physics - Theory · Physics 2026-04-08 Nima Arkani-Hamed , Hadleigh Frost , Giulio Salvatori

We study the behaviour of automorphic L-Invariants associated to cuspidal representations of GL(2) of cohomological weight 0 under abelian base change and Jacquet-Langlands lifts to totally definite quaternion algebras. Under a standard…

Number Theory · Mathematics 2021-05-31 Lennart Gehrmann

This paper is a continuation and an extension of our recent work [3] on the geometric structures of Laplacian eigenfunctions and their applications to inverse scattering problems. In [3], the analytic behaviour of the Laplacian…

Analysis of PDEs · Mathematics 2019-09-24 Xinlin Cao , Huaian Diao , Hongyu Liu , Jun Zou

We study the theory of finite-order p-adic functions and distributions on ray class groups of number fields, and apply this to the construction of (possibly unbounded) p-adic L-functions for automorphic forms on GL(2) which may be…

Number Theory · Mathematics 2015-12-15 David Loeffler

Let $(G_\epsilon)_{\epsilon>0}$ be a family of '$\epsilon$-thin' Riemannian manifolds modeled on a finite metric graph $G$, for example, the $\epsilon$-neighborhood of an embedding of $G$ in some Euclidean space with straight edges. We…

Spectral Theory · Mathematics 2014-02-26 Daniel Grieser

In this article we continue our analysis of Schr\"odinger operators on arbitrary graphs given as certain Laplace operators. In the present paper we give the proof of the composition rule for the scattering matrices. This composition rule…

Mathematical Physics · Physics 2007-05-23 Vadim Kostrykin , Robert Schrader

This paper describes the connection between scattering matrices on conformally compact asymptotically Einstein manifolds and conformally invariant objects on their boundaries at infinity. The conformally invariant powers of the Laplacian…

Differential Geometry · Mathematics 2007-05-23 C. Robin Graham , Maciej Zworski

We prove Levinson's theorem for scattering on an (m+n)-vertex graph with n semi-infinite paths each attached to a different vertex, generalizing a previous result for the case n=1. This theorem counts the number of bound states in terms of…

Mathematical Physics · Physics 2012-11-22 Andrew M. Childs , David Gosset

We consider the reduced Allen-Cahn action functional, which appears as the sharp interface limit of the Allen-Cahn action functional and can be understood as a formal action functional for a stochastically perturbed mean curvature flow. For…

Analysis of PDEs · Mathematics 2013-04-09 Annibale Magni , Matthias Röger