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The theory of modular forms and spherical harmonic analysis are applied to establish new best bounds towards the counting and equidistribution of rational points on spheres and other higher dimensional ellipsoids, in what may be viewed as a…

Number Theory · Mathematics 2024-02-01 Claire Burrin , Matthias Gröbner

We discuss several congruences satisfied by the coefficients of meromorphic modular forms, or equivalently, the $p$-adic behaviors of meromorphic modular forms under the $U_p$ operator, that are summarized from numerical experiments. In the…

Number Theory · Mathematics 2026-02-13 Pengcheng Zhang

I review the understanding of bulges that emerged from the lively discussions and presentations during the meeting, and emphasize areas for future work. The evidence is for a diversity of `bulges', and of formation mechanisms.

Astrophysics · Physics 2007-05-23 Rosemary F. G. Wyse

Many generating series of combinatorially interesting numbers have the property that the sum of the terms of order $<p$ at some suitable point is congruent to a zero of a zeta-function modulo infinitely many primes $p$. Surprisingly, very…

Number Theory · Mathematics 2025-06-17 Frits Beukers

This is the first paper in a series of eight where in the first three we develop a systematic approach to the geometric algebras of multivectors and extensors, followed by five papers where those algebraic concepts are used in a novel…

Differential Geometry · Mathematics 2007-05-23 A. M. Moya , V. V. Fernandez , W. A. Rodrigues

By some SL(2, Z) modular forms introduced in [4] and [10], we construct some modular forms over SL2(Z) and some modular forms over {\Gamma}^0(2) and {\Gamma}_0(2) in odd dimensions. In parallel, we obtain some new cancellation formulas for…

Differential Geometry · Mathematics 2024-01-17 Jianyun Guan , Yong Wang , Haiming Liu

We attempt to develop a general algebro-geometric study of the moduli stack of commutative, 1-parameter formal Lie groups. We emphasize the pro-algebraic structure of this stack: it is the inverse limit, over varying n, of moduli stacks of…

Algebraic Geometry · Mathematics 2007-09-28 Brian D. Smithling

This paper extends sliding-mode control theory to nonlinear systems evolving on smooth manifolds. Building on differential geometric methods, we reformulate Filippov's notion of solutions, characterize well-defined vector fields on quotient…

Optimization and Control · Mathematics 2025-09-17 Fernando Castaños

In this survey article, we summarise the known results towards the conjecture: elliptic curves over totally real number fields are modular. For understanding these recent results in the literature, we present some necessary background along…

Number Theory · Mathematics 2023-04-19 Bidisha Roy , Lalit Vaishya

In this paper we introduce a certain space of higher order modular forms of weight 0 and show that it has a Hodge structure coming from the geometry of the fundamental group of a modular curve. This generalizes the usual structure on…

Number Theory · Mathematics 2015-05-14 Ramesh Sreekantan

We continue the study of the variation of the $p$--modulus of a foliation initiated by the first author. We derive the formula for the second variation which allows to study $p$--stable foliations. We obtain some results concerning…

Differential Geometry · Mathematics 2014-04-04 Malgorzata Ciska--Niedzialomska , Kamil Niedzialomski

Tropical geometry is a relatively recent field in mathematics created as a simplified model for certain problems in algebraic geometry. We introduce the definition of abstract and planar tropical curves as well as their properties,…

Algebraic Geometry · Mathematics 2019-01-15 Stanley Wang

We prove many cases of a conjecture of Buzzard, Diamond and Jarvis on the possible weights of mod $p$ Hilbert modular forms, by making use of modularity lifting theorems and computations in $p$-adic Hodge theory.

Number Theory · Mathematics 2010-09-07 Toby Gee

Some aspects of multidimensional soliton geometry are considered.

General Relativity and Quantum Cosmology · Physics 2007-05-23 Kur. Myrzakul , R. Myrzakulov

In the first part, we revisit the theory of Drinfeld modular curves and $\pi$-adic Drinfeld modular forms for GL(2) from the perfectoid point of view. In the second part, we review open problems for families of Drinfeld modular forms for…

Number Theory · Mathematics 2020-01-31 Marc-Hubert Nicole , Giovanni Rosso

We find and propose an explanation for a large variety of modularity-related symmetries in problems of 3-manifold topology and physics of 3d $\mathcal{N}=2$ theories where such structures a priori are not manifest. These modular structures…

High Energy Physics - Theory · Physics 2020-05-28 Miranda C. N. Cheng , Sungbong Chun , Francesca Ferrari , Sergei Gukov , Sarah M. Harrison

This paper documents and reviews the state of the art concerning computational models of construction grammar learning. It brings together prior work on the computational learning of form-meaning pairings, which has so far been studied in…

Computation and Language · Computer Science 2024-07-11 Jonas Doumen , Veronica Juliana Schmalz , Katrien Beuls , Paul Van Eecke

Given a liftable smooth proper variety over $\mathbb{F}_p$, we construct the moduli stacks of crystals and isocrystals on it. We show that the former is a formal algebraic stack over $\mathbb{Z}_p$ and the latter is an adic stack -- Artin…

Number Theory · Mathematics 2025-04-22 Gyujin Oh , Koji Shimizu

In recent years a series of remarkable advances in tropical geometry and in non-archimedean geometry have brought new insights to the moduli theory of algebraic curves and their Jacobians. The goal of this survey, an expanded version of my…

Algebraic Geometry · Mathematics 2016-09-27 Lucia Caporaso

We study relationships between the Nisnevich topology on smooth schemes and certain Grothendieck topologies on proper and not necessarily proper modulus pairs which were introduced respectively in [9] and [3]. Our results play an important…

Algebraic Geometry · Mathematics 2023-06-22 Bruno Kahn , Hiroyasu Miyazaki