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pro vyhledávání: '"E. A. Elrifai"'
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 2011 (2011)
We introduce a certain subclass of multivalent analytic functions by making use of the principle of subordination between these functions and Cătas operator. Such results as subordination and superordination properties, convolution properties, inclu
Externí odkaz:
https://doaj.org/article/e8cfff177b78459eb7a1e8e5d700e561
Publikováno v:
Journal of Inequalities and Applications, Vol 2010 (2010)
Externí odkaz:
https://doaj.org/article/f3a10ed08f6c4c0b8e93a0241e04c345
Autor:
E. A. Elrifai, Redha. A. Alghamdi
In this work, we present some needed results about matrices of inversions for permutations. Then we apply it for solving the recognition problem of Lorenz braids. Each Lorenz braid is uniquely determined by a unique simple binary matrix. Then, we got
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::567ca69dbb20ea1fc0bf223d5e3002c0
Publikováno v:
Mathematical and Computer Modelling. 57:1335-1349
In the present paper, we introduce the class R"p","n[@a,@b,@c,A,B] of n-p-valent @a-prestarlike functions of order @b and type @c with negative coefficients defined by a Salagean operator. Extreme points, integral operators and distortion theorems of
Publikováno v:
Applied Mathematics. :1225-1235
Making use of the Cho-Kwon-Srivastava operator, we introduce and study a certain SCn (j, p, λ, α, δ) of p-valently analytic functions with negative coefficients. In this paper, we obtain coefficient estimates, distortion theorem, radii of close-to
Autor:
E. A. Elrifai
Publikováno v:
International Journal of Theoretical Physics. 44:1337-1345
A procedure to construct positive knots motivated by symbolic dynamics is given. It is proved that the corresponding knots have a special type of positive braids, positive permutation braids. It is proved that the constructed knots are invariant unde
Autor:
E. A. Elrifai, Mahmoud Benkhalifa
Publikováno v:
Journal of Knot Theory and Its Ramifications. 13:311-324
In the symmetric group Sn, we introduced the notion of crossing and linking numbers to each permutation. Then a unique factorization of a permutation is given due to its crossing number of its factors and how the factors are linked. Consequently we i
Publikováno v:
Demonstratio Mathematica. 45
In this paper, we study and use di¤erential subordination methods to obtain several interesting subordination results and best dominants for higherorder derivatives of multivalent functions de
ned with Srivastava-Attiya operator. Keywords : Subordi
Publikováno v:
Journal of Inequalities and Applications, Vol 2010 (2010)
We introduce and study some new subclasses of p-valent starlike, convex, close-to-convex, and quasi-convex functions defined by certain Srivastava-Attiya operator. Inclusion relations are established, and integral operator of functions in these subcl
Autor:
E. A. Elrifai, M. Anis
Publikováno v:
Journal of Knot Theory and Its Ramifications. 21:1250101
In this paper we constructed an isomorphic group of binary matrices to a finite symmetric group. Our method is based on the inversion of permutations. Using this embedding we find an algorithm for writing down a standard braid word representation for