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相关论文: On Scaling Properties for a Class of Two-Well Prob…

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In this article we study quantitative rigidity properties for the compatible and incompatible two-state problems for suitable classes of $\mathcal{A}$-free operators and for a singularly perturbed $T_3$-structure for the divergence…

偏微分方程分析 · 数学 2023-04-07 Bodgan Raiţă , Angkana Rüland , Camillo Tissot

In this article, we study scaling laws for singularly perturbed two-well energies with prescribed Dirichlet boundary data in settings where the wells and/or the boundary data are incompatible. Our main focus is the geometrically linear…

偏微分方程分析 · 数学 2025-12-16 Noah Piemontese-Fischer

We investigate the scaling behaviour of a singular perturbation model within the geometrically linearized theory of elasticity involving data of higher lamination order. We study boundary data which are of staircase type and show rather…

偏微分方程分析 · 数学 2025-11-17 Lennart Machill , Angkana Rüland

Signal scaling is a fundamental operation of practical importance in which a signal is enlarged or shrunk in the coordinate direction(s). Scaling or magnification is not trivial for signals of a discrete variable since the signal values may…

信号处理 · 电气工程与系统科学 2021-01-19 Aykut Koç , Burak Bartan , Haldun M. Ozaktas

To help resolve issues of non-realizability and restriction to homogeneity faced by analytical theories of turbulence, we explore three-dimensional homogeneous shear turbulence of incompressible Newtonian fluids via optimal control and…

流体动力学 · 物理学 2020-09-01 Luoyi Tao

We study the behavior of shallow water waves over periodically-varying bathymetry, based on the first-order hyperbolic Saint-Venant equations. Although solutions of this system are known to generally exhibit wave breaking, numerical…

偏微分方程分析 · 数学 2025-02-06 David I. Ketcheson , Lajos Lóczi , Giovanni Russo

The focus of our work is dispersive, second-order effective model describing the low-frequency wave motion in heterogeneous (e.g.~functionally-graded) media endowed with periodic microstructure. For this class of quasi-periodic medium…

数值分析 · 数学 2020-06-05 Danial P. Shahraki , Bojan B. Guzina

This work is concerned with extending the results of Calder\' on and Vaillancourt proving the boundedness of Weyl pseudo differential operators Op_h^{weyl} (F) in L^2(\R^n). We state conditions under which the norm of such operators has an…

偏微分方程分析 · 数学 2014-04-02 Laurent Amour , Lisette Jager , Jean Nourrigat

Motivated by complex microstructures in the modelling of shape-memory alloys and by rigidity and flexibility considerations for the associated differential inclusions, in this article we study the energy scaling behaviour of a simplified…

偏微分方程分析 · 数学 2025-03-18 Angkana Rüland , Antonio Tribuzio

We study homogenization of multiscale Maxwell wave equation that depends on $n$ separable microscopic scales in a domain $D\subset{\mathbb R}^d$ on a finite time interval $(0,T)$. Due to the non-compactness of the embedding of…

偏微分方程分析 · 数学 2017-05-23 Van Tiep Chu , Viet Ha Hoang

Neural scaling laws describe how the performance of deep neural networks scales with key factors such as training data size, model complexity, and training time, often following power-law behaviors over multiple orders of magnitude. Despite…

机器学习 · 统计学 2024-10-14 Roman Worschech , Bernd Rosenow

A quasi-second order scheme is developed to obtain approximate solutions of the shallow water equationswith bathymetry. The scheme is based on a staggered finite volume scheme for the space discretization:the scalar unknowns are located in…

数值分析 · 数学 2021-11-19 R Herbin , J. -C Latché , Y Nasseri , N Therme

In this article we study scaling laws for simplified multi-well nucleation problems without gauge invariances which are motivated by models for shape-memory alloys. Seeking to explore the role of the order of lamination on the energy…

偏微分方程分析 · 数学 2023-01-25 Angkana Rüland , Antonio Tribuzio

Using systematic calculations in spinor language, we obtain simple descriptions of the second order symmetry operators for the conformal wave equation, the Dirac-Weyl equation and the Maxwell equation on a curved four dimensional Lorentzian…

广义相对论与量子宇宙学 · 物理学 2014-06-20 Lars Andersson , Thomas Bäckdahl , Pieter Blue

In this article we are interested in the microscopic modeling of a two-dimensional two-well problem which arises from the square-to-rectangular transformation in (two-dimensional) shape-memory materials. In this discrete set-up, we focus on…

偏微分方程分析 · 数学 2015-09-29 Georgy Kitavtsev , Stephan Luckhaus , Angkana Rüland

In this paper we study boundary value problems for higher order elliptic differential operators in divergence form. We consider the two closely related topics of inhomogeneous problems and problems with boundary data in fractional…

偏微分方程分析 · 数学 2017-08-01 Ariel Barton

We study scaling laws for singular perturbation problems associated with a class of two-dimensional martensitic phase transformations and deduce a domain dependence of the scaling law in the singular perturbation parameter. In these…

偏微分方程分析 · 数学 2024-05-10 Janusz Ginster , Angkana Rüland , Antonio Tribuzio , Barbara Zwicknagl

Scaling laws and intermittency in the wall region of a turbulent flow are addressed by analyzing moderate Reynolds number data obtained by single component hot wire anemometry in the boundary layer of a flat plate. The paper aims in…

混沌动力学 · 物理学 2009-11-07 B. Jacob , A. Olivieri , C. M. Casciola

Lichnerowicz's algebra of differential geometric operators acting on symmetric tensors can be obtained from generalized geodesic motion of an observer carrying a complex tangent vector. This relation is based upon quantizing the classical…

微分几何 · 数学 2008-04-24 Karl Hallowell , Andrew Waldron

We consider Cauchy problem for a divergence form second order parabolic operator with rapidly oscillating coefficients that are periodic in spatial variables and random stationary ergodic in time. As was proved in [24] and [12] in this case…

概率论 · 数学 2023-01-09 Marina Kleptsyna , Andrey Piatnitski , Alexandre Popier
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