Results 31 to 40 of about 55,084 (239)

Positive Definiteness and Semi-Definiteness of Even Order Symmetric Cauchy Tensors [PDF]

, 2014
Motivated by symmetric Cauchy matrices, we define symmetric Cauchy tensors and their generating vectors in this paper. Hilbert tensors are symmetric Cauchy tensors.
Chen, Haibin, Qi, Liqun
core   +1 more source

Certain Properties Associated with Generalized $M$-Series using Hadamard Product [PDF]

Sahand Communications in Mathematical Analysis
The generalized $M$-series is a hybrid function of generalized Mittag-Leffler function and generalized hypergeometric function.  The principal aim of this paper is to investigate certain properties resembling those of the Mittag-Leffler and ...
Dheerandra Sachan, Dinesh Kumar, Kottakkaran Nisar   +2 more
doaj   +1 more source

Partitioned and Hadamard product matrix inequalities [PDF]

Journal of Research of the National Bureau of Standards, 1978
This note is partly expositor). Inequalities relating inversion with, respectively, extraction of principal submatriees and the Hadamard product in the two possible orders are developed in a simple and unified way for positive definite matrices. These inequalities are known, hut we also characterize the cases of equality and strict inequality.
openaire   +3 more sources

Hadamard Products of Projective Varieties with Errors and Erasures

AppliedMath
In Algebraic Statistics, M.A. Cueto, J. Morton and B. Sturmfels introduced a statistical model, the Restricted Boltzmann Machine, which introduced the Hadamard product of two or more vectors of an affine or projective space, i.e., the componentwise ...
Edoardo Ballico
doaj   +1 more source

Differential Subordination and Superordination of Multivalent Functions Involving Differential Operator

Al-Mustansiriyah Journal of Science, 2021
In the present work, we derive some properties of subordination and superordination results associated with the Hadamard product concept involving the composition of the differential operator.
Huda Fawzi Isawi, Abdul Rahman S. Juma
doaj   +1 more source

Matrix Completions, Norms, and Hadamard Products [PDF]

Proceedings of the American Mathematical Society, 1993
The author obtains a necessary and sufficient condition for \(X_ 0\in S\subset H_ n\) to attain the maximum in the problem \(\max\{\lambda_{\min}(A+X):X\in S\}\), where \(A\in H_ n\) is a fixed matrix, \(H_ n\) is the space of \(n\times n\) Hermitian matrices, and \(S\) is a closed convex set.
openaire   +1 more source

Integral Operator Defined by k-th Hadamard Product

Journal of Mathematical and Fundamental Sciences, 2013
We introduce an integral operator on the class A of analytic functions in the unit disk involving k Æ’{ th Hadamard product (convolution) corresponding to the differential operator defined recently by Al-Shaqsi and Darus.
Maslina Darus, Rabha W. Ibrahim
doaj   +1 more source

On the Hadamard product of Hopf monoids

, 2012
Combinatorial structures which compose and decompose give rise to Hopf monoids in Joyal's category of species. The Hadamard product of two Hopf monoids is another Hopf monoid. We prove two main results regarding freeness of Hadamard products.
Aguiar, Aguiar, Bergeron, Loday, Marcelo Aguiar, Poirier, Speicher, Swapneel Mahajan   +7 more
core   +2 more sources

New Subclasses of Multivalent Analytic Functions Associated with a Linear Operator

Abstract and Applied Analysis, 2013
Making use of a linear operator, which is defined here by means of the Hadamard product (or convolution), we consider two subclasses and of multivalent analytic functions with negative coefficients in the open unit disk. Some modified Hadamard products,
Ding-Gong Yang, Jin-Lin Liu
doaj   +1 more source

A Generalised Hadamard Transform [PDF]

, 2005
A Generalised Hadamard Transform for multi-phase or multilevel signals is introduced, which includes the Fourier, Generalised, Discrete Fourier, Walsh-Hadamard and Reverse Jacket Transforms.
Horadam, K. J.
core   +3 more sources