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A set of multipartite orthogonal product states is locally irreducible, if it is not possible to eliminate one or more states from the set by orthogonality-preserving local measurements. An effective way to prove that a set is locally…

量子物理 · 物理学 2022-01-12 Fei Shi , Mao-Sheng Li , Mengyao Hu , Lin Chen , Man-Hong Yung , Yan-Ling Wang , Xiande Zhang

We prove that on an essentially non-branching $\mathrm{MCP}(K,N)$ space, if a geodesic ball has a volume lower bound and satisfies some additional geometric conditions, then in a smaller geodesic ball (in a quantified sense) we have an…

度量几何 · 数学 2021-09-17 Xian-Tao Huang

We investigate a quantum mechanical system on a noncommutative space for which the structure constant is explicitly time-dependent. Any autonomous Hamiltonian on such a space acquires a time-dependent form in terms of the conventional…

量子物理 · 物理学 2014-10-15 Sanjib Dey , Andreas Fring

We develop a theory of `non-uniformly local' tent spaces on metric measure spaces. As our main result, we give a remarkably simple proof of the atomic decomposition.

泛函分析 · 数学 2015-05-14 Alex Amenta , Mikko Kemppainen

We derive a priori bounds on the size of the structure constants of the free Lie algebra over a set of indeterminates, relative to its Hall bases. We investigate their asymptotic growth, especially as a function of the length of the…

组合数学 · 数学 2022-09-23 Karine Beauchard , Jérémy Le Borgne , Frédéric Marbach

We explore the notion of spatial extent and structure, already alluded to in earlier literature, within the formulation of quantum mechanics on the noncommutative plane. Introducing the notion of average position and its measurement, we…

数学物理 · 物理学 2014-11-20 C M Rohwer , K G Zloshchastiev , L Gouba , F G Scholtz

For the moduli space of unmarked convex $\mathbb{RP}^2$ structures on the surface $S_{g,m}$ with negative Euler characteristic, we investigate the subsets of the moduli space defined by the notions like boundedness of projective invariants,…

微分几何 · 数学 2020-01-28 Zhe Sun

A commutative associative algebra A with an identity over the field of real numbers which has a basis, where all elements are invertible, is considered in the work. Moreover, among matrixes consisting of the structure constants of A, there…

复变函数 · 数学 2020-09-29 T. M. Osipchuk

In this note we introduce a Waldschmidt decomposition of divisors which might be viewed as a generalization of Zariski decomposition based on the effectivity rather than the nefness of divisors. As an immediate application we prove a…

代数几何 · 数学 2018-02-27 Marcin Dumnicki , Tomasz Szemberg , Justyna Szpond

Non(anti)commutativity in an open free superstring and also one moving in a background anti-symmetric tensor field is investigated. In both cases, the non(anti)commutativity is shown to be a direct consequence of the non-trivial boundary…

高能物理 - 理论 · 物理学 2015-06-26 Biswajit Chakraborty , Sunandan Gangopadhyay , Arindam Ghosh Hazra , Frederik G. Scholtz

We single out a notion of staticity which applies to any domain in hyperbolic space whose boundary is a non-compact totally umbilical hypersurface. For (time-symmetric) initial data sets modeled at infinity on any of these latter examples,…

微分几何 · 数学 2022-11-15 Sergio Almaraz , Levi Lopes de Lima

We prove that every locally constant constructive function on an interval is in fact a constant function. This answers a question formulated by Andrej Bauer. As a related result we show that an interval consisting of constructive real…

逻辑 · 数学 2020-07-24 Viktor Chernov

We consider classes T of topological spaces (referred to as T-spaces) that are stable under continuous images and frequently under arbitrary products. A local T-space has for each point a neighborhood base consisting of subsets that are…

一般拓扑 · 数学 2020-10-09 Simon Brandhorst , Marcel Erné

Lower semi-continuity (\texttt{LSC}) is a critical assumption in many foundational optimisation theory results; however, in many cases, \texttt{LSC} is stronger than necessary. This has led to the introduction of numerous weaker continuity…

最优化与控制 · 数学 2025-04-11 Jacob Westerhout , Xin Guo , Hien Duy Nguyen

It is known that if a nonlinear control affine system without drift is bracket generating, then its associated sub-Laplacian is invertible under some conditions on the domain. In this note, we investigate the converse. We show how…

最优化与控制 · 数学 2024-05-16 Karthik Elamvazhuthi

Classical conditions for ensuring the robust stability of a linear system in feedback with a sector-bounded nonlinearity include small gain, circle, passivity, and conicity theorems. In this work, we present a similar stability condition,…

最优化与控制 · 数学 2019-09-18 Saman Cyrus , Laurent Lessard

We investigate the kinetics of a nonrelativistic particle interacting with a constant external force on a Lie-algebraic noncommutative space. The structure constants of a Lie algebra, also called noncommutative parameters, are constrained…

数学物理 · 物理学 2011-07-08 Yan-Gang Miao , Xu-Dong Wang , Shao-Jie Yu

This paper presents a constructive proof of the existence of a regular non-atomic strictly-positive measure on any second-countable non-atomic locally compact Hausdorff space. This construction involves a sequence of finitely-additive set…

泛函分析 · 数学 2020-02-21 Jason Bentley

We study a nonlocal evolution equation modeling the deformation of a bridge, either a footbridge or a suspension bridge. Contrarily to the previous literature we prove the asymptotic stability of the considered model with a minimum amount…

We give conditions under which nonuniformly expanding maps exhibit lower bounds of polynomial type for the decay of correlations and for a large class of observables. We show that if the Lasota-Yorke type inequality for the transfer…

动力系统 · 数学 2017-09-28 Huyi Hu , Sandro Vaienti