Results 181 to 190 of about 2,726,393 (218)
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Semicircle Law for Hadamard Products
SIAM Journal on Matrix Analysis and Applications, 2007Summary: Assuming \(p/n\rightarrow 0\) as \(n\rightarrow\infty\), we will prove the weak and strong convergence to the semicircle law of the empirical spectral distribution of the Hadamard product of a normalized sample covariance matrix and a sparsing matrix, which is of the form \(A_p=\frac{1}{\sqrt{np}}(X_{m,n}X_{m,n}^*-\sigma^2nI_m)\circ D_{m ...
Bai, Z.D., Zhang, L.X.
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The Hadamard Product and Some of Its Applications in Statistics
Statistics, 1995 870 Algebraic properties of the Hadamard product are used to establish some statistical properties.
Shuangzhe Liu, H Neudecker
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Some Results on the Hadamard Product of Tensors
Bulletin of the Iranian Mathematical Society, 2019zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhengbo Li, Yaotang Li
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Linear Algebra and its Applications, 2020
Given two \(n\times n\) matrices \(A, B\), the Hadamard product, \(A\circ B =[a_{ij}b_{ij}]\) of \(A\) and \(B\) behaves very differently from the usual matrix product \(AB\). For example, \(A\circ B = B\circ A\) but \(AB\not=BA\); if \(A\) and \(B\) are positive semidefinite, \(A\circ B\) is positive semidefinite, but \(AB\) is in general not (though \
Roger A. Horn, Zai Yang
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Given two \(n\times n\) matrices \(A, B\), the Hadamard product, \(A\circ B =[a_{ij}b_{ij}]\) of \(A\) and \(B\) behaves very differently from the usual matrix product \(AB\). For example, \(A\circ B = B\circ A\) but \(AB\not=BA\); if \(A\) and \(B\) are positive semidefinite, \(A\circ B\) is positive semidefinite, but \(AB\) is in general not (though \
Roger A. Horn, Zai Yang
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On certain applications of the Hadamard product
Applied Mathematics and Computation, 2008zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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On the Asymptotic Expansion of Hadamard Products
Mathematische Nachrichten, 1997AbstractWe consider functions f and g which are holomoxphic on closed sectors in C where they admit an asymptotic representation at ā in the form of power series in zā1. We give a simple geometrical condition under which the Hadamard product f*g of f and g porsesses again an asymp totic expansion at ā.
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Product of Resolvents on Hadamard Manifolds
Mediterranean Journal of MathematicszbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ahmadi, Fatemeh +2 more
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Linear and Multilinear Algebra, 1974
The entry-wise product of arbitrary n Ć ncomplex matrices is studied. The principal tools used include the Kionecker product, field of values and diagonal multiplications. Inclusion theorems for the field of values and spectrum are developed in the general case and refined in special cases.
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The entry-wise product of arbitrary n Ć ncomplex matrices is studied. The principal tools used include the Kionecker product, field of values and diagonal multiplications. Inclusion theorems for the field of values and spectrum are developed in the general case and refined in special cases.
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Hadamard Products of Projective Varieties
Frontiers in MathematicsThis monograph deals with the Hadamard products of algebraic varieties. A typical subject of study in Algebraic Geometry are varieties constructed from other geometrical objects. The most well-known example is constituted by the secant varieties, which are obtained through the construction of the join of two algebraic varieties, which, in turn, is ...
Bocci, Cristiano, Carlini, Enrico
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Inequalities for the Singular Values of Hadamard Products
SIAM Journal on Matrix Analysis and Applications, 1997In their classical book ``Topics on matrix analysis'' (1991; Zbl 0729.15001), p. 334, \textit{R. A. Horn} and \textit{C. R. Johnson} gave an upper bound on the sum of the singular values of the Hadamard (Schur) product of two complex matrices in terms of the row and column lengths of one matrix and the singular values of the other matrix, and ...
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