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High-resolution computed tomography (CT) imaging is essential for medical diagnosis but requires increased radiation exposure, creating a critical trade-off between image quality and patient safety. While deep learning methods have shown…

图像与视频处理 · 电气工程与系统科学 2025-06-16 Chunlei Li , Yilei Shi , Haoxi Hu , Jingliang Hu , Xiao Xiang Zhu , Lichao Mou

Solutions of Rough Differential Equations (RDE) may be defined as paths whose increments are close to an approximation of the associated flow. They are constructed through a discrete scheme using a non-linear sewing lemma. In this article,…

概率论 · 数学 2020-04-27 Antoine Brault , Antoine Lejay

Let $R$ be a 3-dimensional complete local Gorenstein isolated singularity. For a basic maximal modifying $R$-module $M$, we construct a wall-and-chamber structure, denoted by ${\sf Cone}(M)$ and called the mutation cone of $M$, in the real…

代数几何 · 数学 2026-03-24 Wahei Hara , Yuki Hirano

We consider the Cauchy problem for a second-order nonlinear evolution equation in a Hilbert space. This equation represents the abstract generalization of the Ball integro-differential equation. The general nonlinear case with respect to…

数值分析 · 数学 2022-09-20 Jemal Rogava , Mikheil Tsiklauri , Zurab Vashakidze

For Gorenstein quotient spaces $C^d/G$, a direct generalization of the classical McKay correspondence in dimensions $d\geq 4$ would primarily demand the existence of projective, crepant desingularizations. Since this turned out to be not…

alg-geom · 数学 2008-02-03 Dimitrios I. Dais , Martin Henk , Guenter M. Ziegler

We introduce a fundamental homological invariant, called Serre depth, which stratifies Serre's conditions in the same way that depth stratifies the Cohen-Macaulay property. We study the Serre depths of modules over arbitrary Noetherian…

交换代数 · 数学 2026-03-04 Antonino Ficarra

Persistent currents circulate continuously without requiring external power sources. Here, we extend their theory to include dissipation within the framework of non-Hermitian quantum Hamiltonians. Using Green's function formalism, we…

量子物理 · 物理学 2024-08-27 Pei-Xin Shen , Zhide Lu , Jose L. Lado , Mircea Trif

This work gathers new results concerning the semi-geostrophic equations: existence and stability of measure valued solutions, existence and uniqueness of solutions under certain continuity conditions for the density, convergence to the…

偏微分方程分析 · 数学 2007-05-23 G. Loeper

This paper investigates Nekhoroshev-type stability for solutions of ultra-differentiable regularity in Schr\"odinger equations with non-local nonlinear terms, employing the method of rational normal forms. We establish the first rigorous…

偏微分方程分析 · 数学 2026-03-06 Bingqi Yu , Li Yong

Gazeau-Klauder coherent states in noncommutative quantum mechanics are considered. We find that these states share similar properties to those of ordinary canonical coherent states in the sense that they saturate the related position…

高能物理 - 理论 · 物理学 2015-05-13 J Ben Geloun , F G Scholtz

Springer resolution of the set of nilpotent elements in a semisimple Lie algebra plays a central role in geometric representation theory. A new structure on this variety has arisen in several representation theoretic constructions, such as…

表示论 · 数学 2007-05-23 Roman Bezrukavnikov

In this paper, we give a description for steady Ricci solitons with a linear decay of sectional curvature. In particular, we classify all 3-dimensional steady Ricci solitons and 4-dimensional $\kappa$-noncollpased steady Ricci solitons with…

微分几何 · 数学 2018-09-25 Yuxing Deng , Xiaohua Zhu

In this paper, we show that the homomorphisms between two unital one-dimensional NCCW complexes with the same KK-class are stably homotopic, i.e., with adding on a common homomorphism (with finite dimensional image), they are homotopic. As…

算子代数 · 数学 2019-09-18 Qingnan An , George A. Elliott , Zhichao Liu , Yuanhang Zhang

We show that the closed convex hull of any one-dimensional semi-algebraic subset of R^n has a semidefinite representation, meaning that it can be written as a linear projection of the solution set of some linear matrix inequality. This is…

代数几何 · 数学 2017-09-19 Claus Scheiderer

We propose a notion of stability for capillary hypersurfaces with constant higher order mean curvature and we generalize some results of the classical stability theory for CMC capillary hypersurfaces.

微分几何 · 数学 2023-01-02 Leonardo Damasceno , Maria Fernanda Elbert

Global existence for weak solutions to systems of nematic liquid crystals, with non-constant fluid density has been established by several authors. In this paper, we establish the regularity and uniqueness results for solutions to the…

偏微分方程分析 · 数学 2015-05-30 Mimi Dai , Jie Qing , Maria E. Schonbek

This paper deals with stability in the numerical solution of the prominent Heston partial differential equation from mathematical finance. We study the well-known central second-order finite difference discretization, which leads to large…

计算金融 · 定量金融 2012-05-08 K. J. in 't Hout , K. Volders

The study of resonances (and well-posedness) for complex systems under time-periodic loading is of broad interest in application. The work of Galdi et al.~(2014) connects asymptotic stability of solutions to an unforced Cauchy problem to…

偏微分方程分析 · 数学 2026-05-14 Giovanni P. Galdi , Boris Muha , Justin T. Webster

A new class of solitary waves arises in the solution of nonlinear wave equations with constant impedance and no dispersive terms. They depend on a balance between nonlinearity and a dispersion-like effect due to spatial variation in the…

斑图形成与孤子 · 物理学 2013-12-17 David I. Ketcheson , Manuel Quezada de Luna

We analyse the two-dimensional MHD configurations characterising the steady state of the accretion disk on a highly magnetised neutron star. The model we describe has a local character and represents the extension of the crystalline…

高能天体物理现象 · 物理学 2014-11-20 Giovanni Montani , Riccardo Benini