15 articles in this issue
Vasile Lauric
In 1984 M. Putinar proved that hyponormal operators are sub-scalar operators of order two. The proof provided a concrete structure of such operators. We will use this structure to give a sufficient condition ... see more
Davood Ayaseh, Asghar Ranjbari
In this paper we investigate the structure of C(P,Q) (the cone of all continuous linear operators from locally convex cone (P,U) into locally convex cone (Q,W), when (P,U) or (Q,W) are inductive or projective limit locally convex cones. We consi... see more
The operator valued measures and integrals for cone-valued functions have been investigated in [W. Roth, Operator-valued measures and integrals for cone-valued functions, Lecture Notes in Mathematics, vol. 1964, 2009, Springer Verlag, Heidelberg-Berlin-Ne... see more
Slim Bouaziz, Kamel Mezlini, Neji Bettaibi
Using the q-harmonic analysis associated with the q-Rubin operator, we study three types of q-wavelet packets and their corresponding q-wavelet transforms. We give for these wavelet transforms the related Plancherel and inversion formulas as well as their... see more
A. R. Ashrafi
Mabrouk Sghaier
In this paper, we introduce a new class of symmetric orthogonal polynomials that generalizes the class of Dunkl-classical ones. As applications, we give some new characterizations of the symmetric semiclassical orthogonal polynomials.
Mohammed El Azhari
Let A be a unital B_{0}-algebra with an orthogonal basis, then every multiplicative linear functional on A is continuous. This gives an answer to a problem posed by Z. Sawon and Z. Wronski.
S.M. Anvariyeh, S. Mirvakili, Bijan Davvaz
Habibollah Ansari-Toroghy, Faranak Farshadifar
In this paper, we will introduce the concept of 2-absorbing (resp. strongly 2-absorbing) secondary submodules of modules over a commutative ring as a generalization of secondary modules and investigate some basic properties of these classes of modules.
Edoardo Ballico, Alessandra Bernardi
Rabah Khemis, Abdelouaheb Ardjouni, Ahcene Djoudi
The objective of this work is the application of Krasnoselskii's fixed point technique to prove the existence of periodic solutions of the second-order nonlinear neutral differential equation ((d²)/(dt²))x(t)+p(t)(d/(dt))x(t)+q(t)x(t)=((... see more
Aziz Ifzarne, Abdellah El Kinani
The purpose of this paper is to study the existence of square roots and more generally n-th roots in pseudo-Michael algebras. We examine several conditions that imply the existence of n-th roots and hermitian n-th roots. We also simplify the proofs of the... see more
Feng Qi, Bai-Ni Guo
In the note, the authors express the generalized Fibonacci polynomials in terms of a tridiagonal determinant. Consequently, they also express the Fibonacci numbers and polynomials in terms of tridiagonal determinants.
mehdi khodabakhshi
In this paper, we are interested inthe existence and multiplicity of non-zerosolutions for a two-point boundary value problems subject to Neumannconditions. Our approach is based on a result on spherical maxima sharing the same Lagrange multiplier that wa... see more
Habibollah Ansari-Toroghy, Seyed Sajad Pourmortazavi