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We prove a version of the Khinchine--Groshev theorem for Diophantine approximation of matrices subject to a congruence condition. The proof relies on an extension of the Dani correspondence to the quotient by a congruence subgroup. This…

Number Theory · Mathematics 2019-02-06 Erez Nesharim , Rene Rühr , Ronggang Shi

We abstract and generalize homotopical monadicity statements, placing in a single conceptual framework a range of old and recent recognition and characterization principles in iterated loop space theory in classical, equivariant, and…

Algebraic Topology · Mathematics 2024-02-07 Hana Jia Kong , J. Peter May , Foling Zou

In this paper, we prove a uniform version of Poonen's "Mordell-Lang Plus Bogomolov" theorem for abelian varieties. We mainly generalize R\'emond's work on large points to allow an extra $\epsilon$-neighborhood. The part on small points…

Number Theory · Mathematics 2024-11-26 Tangli Ge

We introduce the bicategory of bialgebras with coverings (which can be thought of as coalgebra-indexed families of morphisms), and provide a motivating application to the transfer of formulas for primitives and antipode. Additionally, we…

Rings and Algebras · Mathematics 2018-09-14 Aaron Lauve , Mitja Mastnak

The aim of our paper is twofold. First, we thoroughly study the set of meager elements $M(E)$, the set of sharp elements $S(E)$ and the center $C(E)$ in the setting of meager-orthocomplete homogeneous effect algebras $E$. Second, we prove…

Logic · Mathematics 2012-04-04 Josef Niederle , Jan Paseka

We give a streamlined proof of the multiplicative ergodic theorem for quasi-compact operators on Banach spaces with a separable dual.

Dynamical Systems · Mathematics 2016-12-05 Cecilia González-Tokman , Anthony Quas

We use bicombings on arcwise connected metric spaces to give definitions of convex sets and extremal points. These notions coincide with the customary ones in the classes of normed vector spaces and geodesic metric spaces which are convex…

Metric Geometry · Mathematics 2007-11-06 Theo Buehler

Bernstein polynomials provide a constructive proof for the Weierstrass approximation theorem, which states that every continuous function on a closed bounded interval can be uniformly approximated by polynomials with arbitrary accuracy.…

Numerical Analysis · Mathematics 2023-07-24 Tiangang Cui , Friedrich Pillichshammer

We extend the Marsden-Weinstein-Meyer symplectic reduction theorem to the setting of multisymplectic manifolds. In this context, we investigate the dependence of the reduced space on the reduction parameters. With respect to a distinguished…

Symplectic Geometry · Mathematics 2021-05-14 Casey Blacker

In this paper we introduce a special kind of relative (co)resolutions associated to a pair of classes of objects in an abelian category $\mathcal{C}.$ We will see that, by studying these relative (co)resolutions, we get a possible…

Representation Theory · Mathematics 2024-06-11 Alejandro Argudín Monroy , Octavio Mendoza Hernández

In this paper, we define and prove basic properties of complement polyhedral product spaces, dual complexes and polyhedral join complexes. Then we compute the universal algebra of polyhedral join complexes under certain split conditions and…

Algebraic Topology · Mathematics 2017-07-20 Qibing Zheng

We prove several unique continuation results for biharmonic maps between Riemannian manifolds.

Differential Geometry · Mathematics 2019-02-20 Volker Branding , Cezar Oniciuc

A Strong Convergence Theorem for finite families of Bregman Demimetric Mappings in a Banach Space under a New Shrinking projection Method

Functional Analysis · Mathematics 2021-09-07 Bijan Orouji , Ebrahim Soori , Donal O'Regan , Ravi P. Agarwal

Assuming the Generalized Riemann Hypothesis we obtain uniform, effective number-field analogues of Mertens' theorems.

Number Theory · Mathematics 2021-04-07 Stephan Ramon Garcia , Ethan Simpson Lee

Leibniz-type rules for Coifman-Meyer multiplier operators are studied in the settings of Triebel-Lizorkin and Besov spaces associated to weights in the Muckenhoupt classes. Even in the unweighted case, improvements on the currently known…

Classical Analysis and ODEs · Mathematics 2019-04-08 Virginia Naibo , Alexander Thomson

This paper examines the existence and region of convergence of Fourier transform of the functions of bicomplex variables with the help of projection on its idempotent components as auxiliary complex planes. Several basic properties of this…

Complex Variables · Mathematics 2015-10-20 Abhijit Banerjee , Sanjib Kumar Datta , Md Azizul Hoque

We establish a `mixed' version of a fundamental theorem of Khintchine within the field of simultaneous Diophantine approximation. Via the notion of ubiquity we are able to make significant progress towards the completion of the metric…

Number Theory · Mathematics 2013-02-15 Stephen Harrap , Tatiana Yusupova

The basic theory of semi-measures on locally compact Abelian groups is extended to prove the existence of a generalised Eberlein decomposition into such semi-measures.

Functional Analysis · Mathematics 2021-11-08 Timo Spindeler , Nicolae Strungaru

In this paper, we shall consider the notion of bicomplex inner product and define bicomplex Hilbert space. We shall define $L^{2}[a,b]$ where the functions take bicomplex values. We shall prove the Theorem for a bounded self adjoint…

Functional Analysis · Mathematics 2024-02-27 Akshay Sakharam Rane

Following an idea of Bendersky-Gitler, we construct an isomorphism between Anderson's and Arone's complexes modelling the chain complex of a map space. This allows us to apply Shipley's convergence theorem to Arone's model. As a corollary,…

Algebraic Topology · Mathematics 2011-02-09 Semen Podkorytov