Search Results - "MOUHIB, A."

The Z2-torsion of the cyclotomic Z2-extension of some CM number fields by Mouhib, A.

“…It is well known from the results of Ferrero and Kida [2,7] that the Z 2 -torsion part of the unramified abelian Iwasawa module X ∞ of any imaginary quadratic…”
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Correction to: On the rank of the 2-class group of some imaginary biquadratic number fields by Mouhib, A., Rouas, S.

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On unramified Galois 2-groups over Z2-extensions of some imaginary biquadratic number fields by Mouhib, A., Rouas, S.

“…For an imaginary biquadratic number field K = Q ( - q , d ) , where q > 3 is a prime congruent to 3 ( mod 8 ) , and d is an odd square-free integer which is…”
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Fields Q(i,2,p1,…,pn) with cyclic 2-class group by Essahel, S., Mouhib, A.

“…Let n be an integer ≥ 1 and p 1 , . . . , p n distinct odd prime integers. In this article, we give the list of all imaginary multiquadratic number fields K n…”
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On the rank of the 2-class group of some imaginary biquadratic number fields by Mouhib, A., Rouas, S.

“…For an imaginary biquadratic number field L = Q ( i , d ) , where d is an odd square-free integer, let L ∞ be the cyclotomic Z 2 -extension of L . For any…”
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Elliptic curves over the ring R by Boulbot, A., Chillali, Abdelhakim, Mouhib, A.

“…Let Fq be a finite field of q elements, where q is a power of a prime number p greater than or equal to 5. In this paper, we study the elliptic curve denoted…”
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Early bilateral pulmonary embolism in a polytrauma patient: About a case report by haddad, I. Arhoun el, mouhib, A. El, Hattab, O., Assamti, M., Mojahid, A., Bkiyer, H., Nasri, S., Skiker, I., Ouafi, El, Housni, B.

“…and importance: Venous thromboembolism (VTE) is a well-known complication in polytrauma patients, associated with a high rate of mortality and morbidity…”
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Image encryption scheme based on a new secure variant of Hill cipher and 1D chaotic maps by Essaid, M., Akharraz, I., Saaidi, A., Mouhib, et A.

“…This article suggests a new image encryption algorithm based on a secure variant of Hill Cipher (HC) and three improved one-dimensional (1D) chaotic maps. The…”
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The $$\mathbb{Z}_2$$-torsion of the cyclotomic $$\mathbb{Z}_2$$-extension of some CM number fields by Mouhib, A.

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On unramified Galois 2-groups over $$\mathbb{Z}_2$$-extensions of some imaginary biquadratic number fields by Mouhib, A., Rouas, S.

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Fields $$\mathbb{Q}(i, \sqrt{2},\sqrt{p_1},\ldots ,\sqrt{p_n})$$ with cyclic 2-class group by Essahel, S., Mouhib, A.

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A positive proportion of some quadratic number fields with infinite Hilbert 2-class field tower by Mouhib, A.

“…We show that a positive proportion of real and imaginary quadratic number fields with 2-class rank equal to 2 have 4-rank equal to 1 or 2 and infinite Hilbert…”
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A new approach of image encryption based on dynamic substitution and diffusion operations by ESSAID, M., AKHARRAZ, I., SAAIDI, A., MOUHIB, A.

“…This work proposes a solution that provides good security for the transmission of color images through unsecured channels. To achieve this objective, two…”
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Elliptic curve and Lattice cryptosystem by Elhassani, M., Chillali, A., Mouhib, A.

“…In this work, we will present a new hybrid cryptography method based on two hard problems: 1- The problem of the discrete logarithm on an elliptic curve…”
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Elliptic curve over a finite ring generated by 1 and an idempotent element $e$ with coefficients in the finite field $\mathbb{F}_{3^d} by Boulbot, A., Chillali, Abdelhakim, Mouhib, A.

“…An elliptic curve over a ring $\mathcal{R}$ is a curve in the projective plane $\mathbb{P}^{2}(\mathcal{R})$ given by a specific equation of the form $f(X, Y,…”
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On the parity of the class number of multiquadratic number fields by Mouhib, A.

“…This paper investigates the 2-class group of real multiquadratic number fields. Let p 1 , p 2 , … , p n be distinct primes and K = Q ( p 1 , p 2 , … , p n ) …”
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A novel image encryption scheme based on permutation/diffusion process using an improved 2D chaotic system by Essaid, M., Akharraz, I., Saaidi, A., Mouhib, A.

“…This paper suggests an efficient image encryption technique based on double permutation/diffusion process. The aim is to secure a color and gray scale images…”
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Early bilateral pulmonary embolism in a polytrauma patient: About a case report by Haddad, I Arhoun El, Mouhib, A El, Hattab, O, Assamti, M, Mojahid, A, Bkiyer, H, Nasri, S, Skiker, I, Ouafi, El, Housni, B

“…Introductionand importance: Venous thromboembolism (VTE) is a well-known complication in polytrauma patients, associated with a high rate of mortality and…”
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