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We represent closed subspaces of the Hardy space that are invariant under finite-rank perturbations of the backward shift. We apply this to classify almost invariant subspaces of the backward shift and represent a more refined version of…

泛函分析 · 数学 2024-08-09 Soma Das , Jaydeb Sarkar

In \cite{Troitsky:05,Korostenski:08}, the authors introduced and studied the space $\mathcal M_r$ of regular martingales on a vector lattice and the space $M_r$ of bounded regular martingales on a Banach lattice. In this note, we study…

泛函分析 · 数学 2015-01-09 Vladimir G. Troitsky , Foivos Xanthos

Learning useful representations of complex data has been the subject of extensive research for many years. With the diffusion of Deep Neural Networks, Variational Autoencoders have gained lots of attention since they provide an explicit…

机器学习 · 计算机科学 2020-09-15 Marco Maggipinto , Matteo Terzi , Gian Antonio Susto

We improve our results on boundedness of the Riesz potential in the central Morrey-Orlicz spaces and the corresponding weak-type version. We also present two new properties of the central Morrey-Orlicz spaces: nontriviality and inclusion…

泛函分析 · 数学 2023-02-21 Evgeniya Burtseva , Lech Maligranda

Let $ 1\leq p< \infty$ and let $\psi\in L^{p}(\R^d)$. We study $p-$Riesz bases of quasi shift invariant spaces $V^p(\psi;Y)$.

泛函分析 · 数学 2017-10-03 Laura De Carli , Pierluigi Vellucci

This paper provides two characterizations of regularity for near-vector spaces: first, by expressing them as a direct sum of vector spaces over division rings formed by distributive elements; second, by expressing their dimension in term of…

环与代数 · 数学 2024-07-25 Leandro Boonzaaier , Sophie Marques , Daniella Moore

We introduce a novel latent vector space model that jointly learns the latent representations of words, e-commerce products and a mapping between the two without the need for explicit annotations. The power of the model lies in its ability…

信息检索 · 计算机科学 2016-08-26 Christophe Van Gysel , Maarten de Rijke , Evangelos Kanoulas

We study the order theoretic properties of relative weak injectivity, w.r.i., in short, in the category of C*-algebras. We prove that Arveson's extension theorem, with additional order assumption on the morphisms, is tightly connected with…

算子代数 · 数学 2016-10-28 Ali Samil Kavruk

Medical data range from genomic sequences and retinal photographs to structured laboratory results and unstructured clinical narratives. Although these modalities appear disparate, many encode convergent information about a single…

定量方法 · 定量生物学 2025-06-06 Salil Patel

We prove optimal integrability results for solutions of the $p(\cdot)$-Laplace equation in the scale of (weak) Lebesgue spaces. To obtain this, we show that variable exponent Riesz and Wolff potentials maps $L^1$ to variable exponent weak…

泛函分析 · 数学 2013-10-24 Alexandre Almeida , Petteri Harjulehto , Peter Hästö , Teemu Lukkari

We define the notion of a submersion of subcartesian differential spaces and prove some of its properties, which are analogous to those of a submersion in the category of smooth manifolds and smooth mappings.

辛几何 · 数学 2023-05-02 Richard Cushman

Shape priors have long been known to be effective when reconstructing 3D shapes from noisy or incomplete data. When using a deep-learning based shape representation, this often involves learning a latent representation, which can be either…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Patrick M. Jensen , Udaranga Wickramasinghe , Anders B. Dahl , Pascal Fua , Vedrana A. Dahl

We give a relation between the existence of a Zariski decomposition and the behavior of the restricted volume of a big divisor on a smooth (complex) projective variety. Moreover, we give an analytic description of the restricted volume in…

代数几何 · 数学 2013-01-17 Shin-ichi Matsumura

Let $1\leq p\leq q\leq\infty.$ Being motivated by the classical notions of limited, $p$-limited and coarse $p$-limited subsets of a Banach space, we introduce and study $(p,q)$-limited subsets and their equicontinuous versions and coarse…

泛函分析 · 数学 2024-03-05 Saak Gabriyelyan

Some types of statistical convergence such as statistical order and deferred statistical convergences have been studied and investigated in Riesz spaces, recently. In this paper, we introduce the concept of deferred statistical convergence…

泛函分析 · 数学 2022-09-30 Mehmet Küçükaslan , Abdullah Aydın

We initiate a systematic study of lattices of thick subcategories for arbitrary essentially small triangulated categories. To this end we give several examples illustrating the various properties these lattices may, or may not, have and…

范畴论 · 数学 2023-04-25 Sira Gratz , Greg Stevenson

This paper reviews theories, experimental data, and modeling methods for pre-Darcy flow in low-permeability porous media, where Darcy velocity shows nonlinear dependence on pressure gradients at sufficiently low pressures, a deviation from…

地球物理 · 物理学 2024-01-11 Yuntian Teng , Zihao Li , Cheng Chen

The class J of simultaneously almost transitive, uniformly convex and uniformly smooth Banach spaces is characterized in terms of convex-transitivity and weak geometry of the norm.

泛函分析 · 数学 2008-04-10 Jarno Talponen

We investigate the effectivizations of several equivalent definitions of quasi-Polish spaces and study which characterizations hold effectively. Being a computable effectively open image of the Baire space is a robust notion that admits…

Gopal Prasad and A. S. Rapinchuk defined a notion of weakly commensurable lattices in a semisimple group, and gave a classification of weakly commensurable Zariski dense subgroups. A motivation was to classify pairs of locally symmetric…

数论 · 数学 2012-12-07 Chandrasheel Bhagwat , Supriya Pisolkar , C. S. Rajan