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Parcourir Publications scientifiques par titre

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  • Orders of solutions of an-th order linear differential equation with entire coefficients. 
    Belaïdi, Benharrat; Hamouda, Saada (Electronic Journal of Differential Equations (EJDE)[electronic only], 2001)
    We study the solutions of the di erential equation f(n) + An􀀀1(z)f(n􀀀1) + + A1(z)f0 + A0(z)f = 0; where the coe cients are entire functions . We nd conditions on the coe cients so that every solution that is ...
  • Oscillation and fixed points of derivatives of solutions of some linear differential equations 
    Belaidi, Benharrat; El Farissi, Abdallah (Matematika, 2014-12-01)
    In this paper, we investigate the relationship between solutions and their derivatives of the differential equation f(k) + Af = 0 for k > 2 and meromorphic functions of infinite iterated p-order, where A is a meromorphic ...
  • Oscillation and nonoscillation for impulsive dynamic equations on certain time scales 
    HAMANI, Samira; Benchohra, Mouffak; Johnny, Henderson (Advances in Difference Equations, 2006-12-01)
    We discuss the existence of oscillatory and nonoscillatory solutions for first-order impulsive dynamic equations on time scales with certain restrictions on the points of impulse. We will rely on the nonlinear alternative ...
  • Oscillation of fast growing solutions of linear differential equations in the unit disc 
    Belaıdi, Benharrat (Acta Univ. Sapientiae, Mathematica, 2010)
    In this paper, we investigate the relationship between solutions and their derivatives of the differential equation f (k) + A (z) f = 0, k ≥ 2, where A (z) 6≡ 0 is an analytic function with finite iterated porder and ...
  • OSCILLATION OF FIXED POINTS OF SOLUTIONS AND THEIR DERIVATIVES OF SOME HIGHER LINEAR DIFFERENTIAL EQUATIONS 
    Dahmani, Zoubir; El Farissi, Abdallah (Selected problems and results of topological algebra, 2013-01-01)
    n this paper, we investigate the relationship between solutions and their derivatives for the di ff erential equation f ( k ) + A k − 1 f ( k − 1 ) + ... + A 0 f = 0 with k ≥ 2 and entire ...
  • Oscillation of fixed points of solutions of some linear differential equations. 
    Belaıdi, B (Acta Mathematica Universitatis Comenianae, 2008-10-01)
    In this paper, we investigate the relationship between solutions and their derivatives of the differential equation f(k) + A(z)f = 0, k 2, where A(z) is a transcendental meromorphic function with p(A) = > 0 and ...
  • Oscillation of fixed points of solutions of some linear differential equations. 
    Belaïdi, B (Acta Mathematica Universitatis Comenianae, 2008-10-01)
    In this paper, we investigate the relationship between solutions and their derivatives of the differential equation f (k) + A(z)f = 0, k ≥ 2, where A(z) is a transcendental meromorphic function with ρp(A) = ρ > 0 and ...
  • Oscillation of solutions and their arbitrary order derivatives of higher order non-homogeneous LDE 
    Belaïdi, B; Saidani, M (Scientific Publications of the State University of Novi Pazar Series A: Applied Mathematics, Informatics and mechanics, 2017)
    In this paper, we investigate the iterated order of solutions of higher order nonhomogeneous linear differential equations Ak (z) f (k)+Ak􀀀1 (z) f (k􀀀1)+ +A1 (z) f ′ +A0 (z) f = F (z) ; where A0 (z) ;A1 (z) ; ...
  • [p, q]-order of solutions of complex differential equations in a sector of the unit disc 
    Belaidi, Benharrat; Zemirni, Mohamed Amine (Annals of the University of Craiova-Mathematics and Computer Science Series, 2018-12-02)
    In this article, we study the growth of solutions of linear complex differential equations by using the concept of [p, q]-order in a sector of the unit disc instead of the whole unit disc, and we obtain similar results as ...
  • Parametrix du Problème de Cauchy C-infinity Hyperbolique Muni d'un Système d'Ordres de Leray-Volevîc 
    Messirdi, Bekkai; Senoussaoui, Abderrahmane (Zeitschrift für Analysis und ihre Anwendungen, 2005-09-30)
    Using algebrically conditions of localization and strict hyperbolicity, we construct a matrix of Fourier integral operators. The symbols of these operators and their traces allow to deduce the parametrix of C1 associated ...
  • Peak to average power ratio analysis for OWDM-IDMA system 
    Awatif Rouijel; Benayad Nsiri; Driss Aboutajdine (2011 International Conference on Multimedia Computing and Systems, 2011-04-07)
    A major drawback of orthogonal frequency division multiplexing interleave division multiple access (OFDM-IDMA) is the high peak to average power ratio (PAPR) of the transmitted signal. In this paper, the basic principle ...
  • Performance analysis of a two stage security approach in cloud computing 
    Mehdi Ezzarii; Hassan El Ghazi; Hamid Elghazi; Tayeb Sadiki (2015 International Conference on Cloud Technologies and Applications (CloudTech), 2015-06-02)
    Cloud computing is emerging as a promising IT paradigm. Many challenges are still hanging ahead for the Cloud to jump into the maturity stage. Thus, security is deemed as a main challenge. In this paper, we develop the ...
  • Performance analysis of an improved probability-based and counter-based broadcast protocols for VANETs 
    Assia Naja; Mohammed Boulmalf; Mohamed Essaaidi (2017 International Conference on Electrical and Information Technologies (ICEIT), 2017-11-15)
    VANETs use many wireless communication techniques to improve driver’s safety and transportation efficiency. Therefore, the design of a good broadcasting protocol that performs well in all criteria in order to avoid storm ...
  • Performance Characterization of IEEE 802.11 g in an Office Environment 
    Mohammed Boulmalf; Tamer Rabie; Khaled Shuaib; Abderrahamne Lakas; Hesham Elsayed (European and Mediterranean Conference on Information, 2006)
    Wireless local-area networks (WLANs) based on IEEE 802.11 a/b/g standards are growing rapidly. WLANs can provide the benefits of network connectivity without the restrictions of being tied to a location or restricted by ...
  • Performance evaluation study of an indoor IEEE 802.11 g 
    Mohammed Boulmalf; Tamer Rabie; Khaled Shuaib; Abderrahamne Lakas; Hesham El-Sayed (International Journal of Value Chain Management, 2007-12-28)
    Wireless Local Area Networks (WLANs) based on IEEE 802.11a/b/g standards are growing rapidly. WLANs can provide the benefits of network connectivity without the restrictions of being tied to a location or restricted by ...
  • Performance of iterative multiuser detection in OWDM-IDMA system 
    Awatif Rouijel; Benayad Nsiri; Mohammed ET Tolba (2010 5th International Symposium On I/V Communications and Mobile Network, 2010-09-30)
    Efficiency and adaptivity play a major role in the design of fourth-generation wireless systems (4G). These systems should be efficient in terms of bandwidth and power allocation. Moreover, low complexity transceivers ...
  • Performance prediction of smart permanent virtual circuits in ATM networks with CACI Comnet 
    Tibor Gyires (SMC'98 Conference Proceedings. 1998 IEEE International Conference on Systems, Man, and Cybernetics (Cat. No. 98CH36218), 1998-10-11)
    As networks becomes larger and more complex the design and management of systems become more and more difficult. New technologies, such as Asynchronous Transfer Mode, new algorithms, and bandwidth demanding applications ...
  • Perturbation and Stability of the Signature Operator on a Riemannian Manifold 
    Messirdi, B; Djerfi, K; Hathout, F (Gen, 2012-09)
    Let M be a Riemannian compact oriented smooth manifold of dimension n multiple of 4. In this paper, we study the signature behavior of M after a perturbation of the signature operator by a multiplication operator of degree ...
  • A planning algorithm for distributed manufacturing 
    Tibor Gyires; Balakrishnan Muthuswamy ([1993] Proceedings International Conference on Intelligent and Cooperative Information, 1993-05-12)
    Distributed manufacturing (DM), downsizing, and outsourcing are becoming increasingly popular. Processes in manufacturing a product may be distributed at d@ererat (geographical) sites. A production plan in such ...
  • Plasma treatment by gliding arc discharge of dyes/dye mixtures in the presence of inorganic salts 
    Addou, Ahmed; Merouani, DR; Abdelmalek, F; Taleb, F; Martel, M; Semmoud, A (Arabian Journal of Chemistry, 2015-03-01)
    The gliding arc discharge plasma (GAD) technique was used for discoloration and degradation of an anthraquinone dye Alizarin red S (ARS), an azo dye Orange G (OG) and their mixture. The influence of chloride and sulfate ...

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