no. 4
Complex analysis
Coefficient estimates for certain classes of meromorphic bi-univalent functions
[Estimations des coefficients pour certaines classes de fonctions méromorphes bi-univalentes]

Présenté par : the Editorial Board

Hamidi, Samaneh G.1 ; Janani, T.2 ; Murugusundaramoorthy, G.2 ; Jahangiri, Jay M.3
1 Institute of Mathematical Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
2 School of Advanced Sciences, VIT University, Vellore, India
3 Department of Mathematical Sciences, Kent State University, Burton, OH, USA
Comptes Rendus. Mathématique, Tome 352 (2014) no. 4, pp. 277-282.

Nous définissons une nouvelle classe de fonctions méromorphes bi-univalentes et utilisons des développements en polynômes de Faber pour déterminer des bornes sur les coefficients de ces fonctions. Nos résultats généralisent et améliorent certains résultats antérieurement connus. Une fonction méromorphe est dite ici être bi-univalente dans un domaine donné Δ si la fonction et sa fonction réciproques y sont toutes deux univalentes.

We define a new class of meromorphic bi-univalent functions and use the Faber polynomial expansions to determine the coefficient bounds for such functions. Our results generalize and/or improve some of the previously known results. A meromorphic function is said to be bi-univalent in a given domain Δ if both the function and its inverse map are univalent there.

Reçu le :
Accepté le :
Publié le :
DOI : 10.1016/j.crma.2014.01.010
Hamidi, Samaneh G. 1 ; Janani, T. 2 ; Murugusundaramoorthy, G. 2 ; Jahangiri, Jay M. 3

1 Institute of Mathematical Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
2 School of Advanced Sciences, VIT University, Vellore, India
3 Department of Mathematical Sciences, Kent State University, Burton, OH, USA 
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Hamidi, Samaneh G.; Janani, T.; Murugusundaramoorthy, G.; Jahangiri, Jay M. Coefficient estimates for certain classes of meromorphic bi-univalent functions. Comptes Rendus. Mathématique, Tome 352 (2014) no. 4, pp. 277-282. doi : 10.1016/j.crma.2014.01.010. http://www.numdam.org/articles/10.1016/j.crma.2014.01.010/

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