Results 111 to 120 of about 4,991,356 (250)
On positive definite functions and representation of Clifford ω-semigroups
Le Matematiche, 1995 errata corrige.
Liliana Pavel
doaj
Young children's use of the definite and in definite articles in referring expressions [PDF]
, 1986 It is argued that the theoretical framework used in earlier studies of children's use of the articles is inadequate, failing in some important ways to capture even normal adult usage.
Emslie, Hazel Carr
core
Advanced Electronic Materials, EarlyView.The amorphous tungsten (W) is found to be a promising non‐magnetic interlayer simultaneously driving the long‐range interlayer exchange coupling and the large spin Hall effect in a synthetic antiferromagnet (SyAF). Thanks to these characteristics, efficient spin‐orbit torque switching is achieved in the SyAF.
Xueyao Hou +9 more
wiley +1 more source
A Class of Positive Definite Completion Problem for Partial Positive Definite Toeplitz Matrices
, 2002 摘要: 并不是所有的部分正定Toeplitz 矩阵都有Toeplitz 正定完成,也并不是每个有正定完成的部分正定矩阵都有 Toeplitz 正定完成. 我们考虑一类部分正定Toeplitz 矩阵的Toeplitz 正定完成问题. Abstract : Not every partial positive definite Toeplitz matrix has Toeplitz positive definite completion and not every par2 tial positive ...
何明, 卢琳璋
core
Agribusiness, EarlyView.ABSTRACT In May 2020, China abruptly suspended imports from several major Australian beef processors, escalating a diplomatic dispute between the two countries. This trade measure disrupted one of the largest beef export relationships in the world almost overnight.
K. Aleks Schaefer, Youngjune Kim
wiley +1 more source
Positive definite solution of two kinds of nonlinear matrix equations [PDF]
Surveys in Mathematics and its Applications, 2009 Based on the elegant properties of the Thompson metric, we prove that the following two kinds of nonlinear matrix equations X=Σi=1m Ai* XδiAi and X=Σi=1m (Ai* XAi)δi ...
Fujian Duan, Zhenyun Peng, Xuefeng Duan
doaj
A Unifying Approach to Self‐Organizing Systems Interacting via Conservation Laws
Advanced Intelligent Discovery, EarlyView.The article develops a unified way to model and analyze self‐organizing systems whose interactions are constrained by conservation laws. It represents physical/biological/engineered networks as graphs and builds projection operators (from incidence/cycle structure) that enforce those constraints and decompose network variables into constrained versus ...
F. Barrows +7 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2017 The Hadamard inequality and Fischer inequality play an important role in the matrix study. Many articles have addressed these inequalities providing new proofs, noteworthy extensions, generalizations, refinements, counterparts and applications.
ZHANGHuamin(张华民) +1 more
doaj +1 more source
Explaining the Origin of Negative Poisson's Ratio in Amorphous Networks With Machine Learning
Advanced Intelligent Discovery, EarlyView.This review summarizes how machine learning (ML) breaks the “vicious cycle” in designing auxetic amorphous networks. By transitioning from traditional “black‐box” optimization to an interpretable “AI‐Physics” closed‐loop paradigm, ML is shown to not only discover highly optimized structures—such as all‐convex polygon networks—but also unveil hidden ...
Shengyu Lu, Xiangying Shen
wiley +1 more source
On positive definite functions and representations of Clifford ω-semigroups
Le Matematiche, 1995 It is known that a complex valued function f on a Clifford ω-semigroup, T=UnGn is positive definite if and only if its restriction fn to Gn, is positive definite for any positive integer n.
Liliana Pavel
doaj