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Related papers: Functor of Points and Height Functions for Noncomm…

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We develop a strategy for bounding from above the height of rational points of modular curves with values in number fields, by functions which are polynomial in the curve's level. Our main technical tools come from effective Arakelov…

Number Theory · Mathematics 2019-01-17 Pierre Parent , with an Appendix by Pascal Autissier

We study sigma-models on noncommutative spaces, notably on noncommutative tori. We construct instanton solutions carrying a nontrivial topological charge q and satisfying a Belavin-Polyakov bound. The moduli space of these instantons is…

Quantum Algebra · Mathematics 2009-11-10 Ludwik Dabrowski , Thomas Krajewski , Giovanni Landi

We continue the study of the correlation functions for the point stochastic processes introduced in Part I (G.Olshanski, math.RT/9804086). We find an integral representation of all the correlation functions and their explicit expression in…

Representation Theory · Mathematics 2007-05-23 Alexei Borodin

There are two notions of Yang-Mills action functional in noncommutative geometry. We show that for noncommutative n-torus both these notions agree. We also prove a structure theorem on the Hermitian structure of a finitely generated…

Operator Algebras · Mathematics 2013-04-30 Partha Sarathi Chakraborty , Satyajit Guin

We study non-commutative real algebraic geometry for a unital associative *-algebra A viewing the points as pairs ({\pi},v) where {\pi} is an unbounded *-representation of A on an inner product space which contains the vector v. We first…

Algebraic Geometry · Mathematics 2013-07-09 Jaka Cimpric

Using Grothendieck's "functor of points" approach to algebraic geometry, we define a new infinite-dimensional algebro-geometric flag space as a $k$-functor (for $k$ a ring) which maps a $k$-algebra $R$ to the set of certain well-ordered…

Algebraic Geometry · Mathematics 2021-12-02 Nathaniel Gallup

In this paper we introduce the notion of Shimura's period symbols over function fields in positive characteristic and establish their fundamental properties. We further formulate and prove a function field analogue of Shimura's conjecture…

Number Theory · Mathematics 2022-08-22 W. Dale Brownawell , Chieh-Yu Chang , Matthew A. Papanikolas , Fu-Tsun Wei

We study statistical inference on unit roots and cointegration for time series in a Hilbert space. We develop statistical inference on the number of common stochastic trends embedded in the time series, i.e., the dimension of the…

Econometrics · Economics 2026-03-17 Morten Ørregaard Nielsen , Won-Ki Seo , Dakyung Seong

Some fixed point results are given for a class of functional contractions over partial metric spaces. These extend some contributions in the area due to Ilic et al [Math. Comput. Modelling, 55 (2012), 801-809].

General Topology · Mathematics 2012-03-27 Mihai Turinici

A general theory of vector-valued modular functions, holomorphic in the upper half-plane, is presented for finite dimensional representations of the modular group. This also provides a description of vector-valued modular forms of arbitrary…

Number Theory · Mathematics 2007-05-23 P. Bantay , T. Gannon

A perspective function is a construction which combines a base function defined on a given space with a nonlinear scaling function defined on another space and which yields a lower semicontinuous convex function on the product space. Since…

Optimization and Control · Mathematics 2024-07-08 Luis M. Briceño-Arias , Patrick L. Combettes , Francisco J. Silva

In this survey article we describe some geometric results in the theory of noncommutative rings and, more generally, in the theory of abelian categories. Roughly speaking and by analogy with the commutative situation, the category of graded…

Rings and Algebras · Mathematics 2007-05-23 J. T. Stafford , M. Van den Bergh

We use the framework of noncommutative geometry to define a discrete model for fluctuating geometry. Instead of considering ordinary geometry and its metric fluctuations, we consider generalized geometries where topology and dimension can…

High Energy Physics - Theory · Physics 2009-11-10 Luiz C. de Albuquerque , Jorge L. deLyra , Paulo Teotonio-Sobrinho

The commutative algebra of functions on a manifold is extended to a noncommutative algebra by considering its tensor product with the algebra of nxn complex matrices. Noncommutative geometry is used to formulate an extension of the…

General Relativity and Quantum Cosmology · Physics 2011-04-20 J. Madore , J. Mourad

We construct a derived enhancement of Hom spaces between rigid analytic spaces. It encodes the hidden deformation-theoretic informations of the underlying classical moduli space. The main tool in our construction is the representability…

Algebraic Geometry · Mathematics 2018-01-25 Mauro Porta , Tony Yue Yu

We consider heights of horizontal irreducible divisors on an arithmetic surface with respect to some hermitian line bundle. We obtain both lower and upper bounds for these heights. The results are different and sometimes stronger that those…

Algebraic Geometry · Mathematics 2007-05-23 C. Soule

We review the noncommutative approach to the standard model. We start with the introduction if the mathematical concepts necessary for the definition of noncommutative spaces, and manifold in particular. This defines the framework of…

High Energy Physics - Theory · Physics 2018-05-02 Fedele Lizzi

We show that various functionals related to the supremum of a real function defined on an arbitrary set or a measure space are Hadamard directionally differentiable. We specifically consider the supremum norm, the supremum, the infimum, and…

Statistics Theory · Mathematics 2019-12-18 Javier Cárcamo , Luis-Alberto Rodríguez , Antonio Cuevas

We continue our development of a new basis for the algebra of non-commutative symmetric functions. This basis is analogous to the Schur basis for the algebra of symmetric functions, and it shares many of its wonderful properties. For…

Combinatorics · Mathematics 2017-08-04 Chris Berg , Nantel Bergeron , Franco Saliola , Luis Serrano , Mike Zabrocki

A central notion of physics is the rate of change. While mathematically the concept of derivative represents an idealization of the linear growth, power law types of non-linearities even in noiseless physical signals cause derivative…

Classical Analysis and ODEs · Mathematics 2016-12-22 Dimiter Prodanov