نتایج جستجو برای: hadamard

تعداد نتایج: 6667  

Journal: :Quantum Information Processing 2006
Dan J. Shepherd

We study a reduced quantum circuit computation paradigm in which the only allowable gates either permute the computational basis states or else apply a “global Hadamard operation”, i.e. apply a Hadamard operation to every qubit simultaneously. In this model, we discuss complexity bounds (lower-bounding the number of global Hadamard operations) for common quantum algorithms : we illustrate upper...

Journal: :Australasian J. Combinatorics 1999
Charlie H. Cooke Iem Heng

A conjecture for generalized Hadamard matrices over group G of order p states that Hadamard matrix GH(p, h) exists only if the matrices In and nIn are Hermitian congruent [1], where n = ph and p is prime. References (4,5] document many parameter values for which non-existence is known to occur. Here, methods for establishing non-existence based upon a fundamental necessary condition of Brock [2...

2005
Beata J Wysocki Tadeusz A Wysocki

Modern communications systems are heavily reliant on statistical techniques to recover information in the presence of noise and interference. One of the mathematical structures used to achieve this goal is Hadamard matrices. They are used in many different ways and some examples are given. This paper concentrates on code division multiple access systems where Hadamard matrices are used for user...

Journal: :bulletin of the iranian mathematical society 2015
a. o. mostafa m. k. aouf

in this paper, we defined two classes $s_{p}^{ast }(n,lambda ,a,b)$ and $ k_{p}(n,lambda ,a,b)$ of meromorphic $p-$valent functions associated with a new linear operator. we obtained convolution properties for functions in these classes.

2005
PHILIPPE LEROUX

Motivated by the success of classical random walks and chaotic dynamical systems, we study the quantisation of the random walk over Z and its relationships with a classical chaotic system x → 2xmod1, x ∈ [0,1]. In the physics literature, quantum random walks have been studied, for instance, by Ambainis et al. [1] and Konno et al. [8, 9]. In [8], Konno shows that the quantum random walk over Z c...

In this paper, we establish integral inequalities of Hermite-Hadamard type for multiplicativelys-preinvex functions. We also obtain some new inequalities involving multiplicative integralsby using some properties of multiplicatively s-preinvex and preinvex functions.

In this paper, we obtain Jensen’s inequality for GG-convex functions. Also, we get in- equalities alike to Hermite-Hadamard inequality for GG-convex functions. Some examples are given.

Journal: :journal of sciences, islamic republic of iran 2014
m. amini

we consider gabor systems generated by a gaussian function and prove certain classical results of paley and wiener on nonharmonic fourier series of complex exponentials for the gabor expansion‎. ‎in particular, we prove a version of plancherel-po ́lya theorem for entire functions with finite order of growth and use the hadamard factorization theorem to study regularity‎, ‎exactness and deficienc...

1999
Bo-Ying Wang Xiuping Zhang Fuzhen Zhang

We investigate the Hadamard product of inverse M-matrices and present two classes of inverse M-matrices that are closed under the Hadamard multiplication. In the end, we give some inequalities on the Fan product of M-matrices and Schur complements. © 2000 Elsevier Science Inc. All rights reserved. AMS classification: 15A09; 15A42

Journal: :Australasian J. Combinatorics 1991
Jennifer Seberry Xian-Mo Zhang

We prove that if there Hadamard of order hand n divisible by 4 then there exist two disjoint ihn), whose sum is a (1,-1) matrix and a complex Hadamard matrix of order furthermore, there exists an 0 D(mj 81,82, ' .. ,8/) for even m then there exists an OD(lhnm;

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