Results 31 to 40 of about 24,793 (234)

CERTAIN SUBCLASSES OF MEROMORPHICALLY P-VALENT FUNCTIONS WITH POSITVE OR NEGATIVE COEFICIENTS USING DIFFERENTIAL OPERATOR

open access: yesTikrit Journal of Pure Science, 2023
In this paper, we have introduced two subclasses  and  of meromorphically p-valent functions with positive and negative coefficients, defined by differential operator in the punctured unit disk  and obtain some sharp results including coefficient ...
Hazha Zirar Hussain
doaj   +1 more source

Constructions of complex Hadamard matrices via tiling Abelian groups [PDF]

open access: yes, 2006
Applications in quantum information theory and quantum tomography have raised current interest in complex Hadamard matrices. In this note we investigate the connection between tiling Abelian groups and constructions of complex Hadamard matrices.
Ferenc Szöllősi   +4 more
core   +3 more sources

On the mean values of L-functions in orthogonal and symplectic families

open access: yes, 2008
Hybrid Euler-Hadamard products have previously been studied for the Riemann zeta function on its critical line and for Dirichlet L-functions in the context of the calculation of moments and connections with Random Matrix Theory.
Bui, H. M., Keating, J. P.
core   +1 more source

Partitioned and Hadamard product matrix inequalities [PDF]

open access: yesJournal 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

Matrix Completions, Norms, and Hadamard Products [PDF]

open access: yesProceedings 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

A Note on Hermite-Hadamard Inequalities for Products of Convex Functions

open access: yesJournal of Applied Mathematics, 2013
We obtain some new Hermite-Hadamard type inequalities for products of convex functions. We conclude that the results obtained in this work are the refinements of the present results.
Feixiang Chen
doaj   +1 more source

On the Hadamard product of Hopf monoids

open access: yes, 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   +7 more
core   +2 more sources

Quantum entanglement in the NMR implementation of the Deutsch-Jozsa algorithm [PDF]

open access: yes, 1999
A scheme to execute an n-bit Deutsch-Jozsa (D-J) algorithm using n qubits has been implemented for up to three qubits on an NMR quantum computer. For the one and two bit Deutsch problem, the qubits do not get entangled, hence the NMR implementation is ...
A Ekert   +18 more
core   +2 more sources

New Hadamard Type Inequalities for Modified h-Convex Functions

open access: yesFractal and Fractional, 2023
In this article, we demonstrated various Hermite–Hadamard and Fejér type inequalities for modified h-convex functions. We showed several inequalities for the products of two modified h-convex functions.
Daniel Breaz   +4 more
doaj   +1 more source

Bulk behaviour of Schur-Hadamard products of symmetric random matrices [PDF]

open access: yes, 2014
We develop a general method for establishing the existence of the Limiting Spectral Distributions (LSD) of Schur-Hadamard products of independent symmetric patterned random matrices.
Bose, Arup, Mukherjee, Soumendu Sundar
core  

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