Results 51 to 60 of about 5,807,139 (254)

Frequency-difference sparse Bayesian learning for unambiguous direction-of-arrival estimation [PDF]

open access: yesJASA Express Letters
The frequency-difference (FD) method uses the FD Hadamard product, comprising auto-products to model below-band acoustic fields and unintended cross-products, for efficient direction-of-arrival (DOA) estimation under spatial aliasing.
Ze Yuan   +3 more
doaj   +1 more source

Inequalities on the spectral radius and the operator norm of Hadamard products of positive operators on sequence spaces [PDF]

open access: yes, 2015
Relatively recently, K.M.R. Audenaert (2010), R.A. Horn and F. Zhang (2010), Z. Huang (2011), A.R. Schep (2011), A. Peperko (2012), D. Chen and Y. Zhang (2015) have proved inequalities on the spectral radius and the operator norm of Hadamard products and
Roman Drnovvsek, Aljovsa Peperko
semanticscholar   +1 more source

Construction of Sylvester-Hadamard Matrices by Using Binary Code [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2009
A simple method is presented which defines Sylvester-Hadamard matrices in terms of products of binary code. This method is based representation of natural number as binary code which take only two value 0 or 1.
doaj   +1 more source

Integral inequalities for s-convex functions via generalized conformable fractional integral operators

open access: yesAdvances in Difference Equations, 2020
We introduce new operators, the so-called left and right generalized conformable fractional integral operators. By using these operators we establish new Hermite–Hadamard inequalities for s-convex functions and products of two s-convex functions in the ...
Artion Kashuri   +4 more
doaj   +1 more source

On the Hadamard Product of Hopf Monoids [PDF]

open access: yesCanadian Journal of Mathematics, 2014
AbstractCombinatorial structures that 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. The first one states that if one factor is connected and the other is free as a monoid, their Hadamard ...
AGUIAR, M, MAHAJAN, S
openaire   +4 more sources

On Some Matrix Trace Inequalities

open access: yesJournal of Inequalities and Applications, 2010
We first present an inequality for the Frobenius norm of the Hadamard product of two any square matrices and positive semidefinite matrices. Then, we obtain a trace inequality for products of two positive semidefinite block matrices by using 2×2 ...
Ramazan Türkmen   +1 more
doaj   +2 more sources

Some Hermite-Hadamard Type Inequalities for Harmonically s-Convex Functions

open access: yesThe Scientific World Journal, 2014
We establish some estimates of the right-hand side of Hermite-Hadamard type inequalities for functions whose derivatives absolute values are harmonically s-convex.
Feixiang Chen, Shanhe Wu
doaj   +1 more source

The Application of Generalized Quasi-Hadamard Products of Certain Subclasses of Analytic Functions with Negative and Missing Coefficients

open access: yesMathematics, 2019
In this paper, we introduce a new generalized differential operator using a new generalized quasi-Hadamard product, and certain new classes of analytic functions using subordination.
En Ao, Shuhai Li
doaj   +1 more source

New Subclasses of Multivalent Analytic Functions Associated with a Linear Operator

open access: yesAbstract 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

On Geometric Circulant Matrices Whose Entries are Bi-Periodic Fibonacci and Bi-Periodic Lucas Numbers

open access: yesUniversal Journal of Mathematics and Applications, 2020
In this study, we obtain upper and lower bounds for the spectral norms of the geometric circulant matrices with the bi--periodic Fibonacci numbers and bi--periodic Lucas numbers, respectively.
Emrah Polatlı
doaj   +1 more source

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