Certain class of analytic functions dened by \(q\)-analogue of Ruscheweyh dierential operator
DOI:
https://doi.org/10.24193/subbmath.2024.1.03Keywords:
Analytic functions, Coefficient estimates, Distortion, q-Ruscheweyh type defferential operator, Neighbourhoods, Partial sums.Abstract
In this paper, we obtain coefficient estimates, distortion theorems, radii of close-to-convexity, starlikeness and convexity for functions belonging to the class \(TB_{q}^{λ}(α,β)\) of analytic starlike and convex functions defined by q-analogue of Ruscheweyh differential operator. Also we find closure theorems, \(N_{k,q,δ}(e,g)\) neighbourhood and partial sums for functions in this class.References
Aldweby, H., Darus, M., Some subordination results on q-analogue of Ruscheweyh differential operator, Abstract and Applied Anal. Article ID 958563, 2014(2014), 1-6.
Annby, M. H., Mansour, Z. S., q-Fractional Calculas Equations, Lecture Noes in Math., 2056, Springer-Verlag Berlin Heidelberg, 2012.
Aouf, M. K., On a new criterion for univalent functions of order Alpha, Rend. di Mat. Roma 11, (1991), 47-59.
Aouf, M. K., Neighborhoods of certain classes of analytic functions with negative coefficients, Internat. J. Math. Math. Sci. 2006, Article ID38258, (2006), 1-6.
Aouf, M. K., Neighborhoods of certain p-valently analytic functions defined by using Sălăgean operator, Demonstratio Math., 41(2008), no. 3, 561-570.
Aouf, M. K., Darwish, H. E., A property of certain analytic functions involving Ruscheweyh derivatives 2, Bull. Malaysian Math. Soc., 19(1996), 9-12.
Aouf, M. K., Darwish, H. E, and G. S. Sălăgean, On a generalization of starlike functions with negative coefficients, Math., Tome 43, 66 (2001), no. 1, 3-10.
Aouf, M. K., Dziok, J., Inclusion and neighborhood properties of certain subclasses of analytic and multivalent functions, European J. Pure Appl. Math., 2( 2009), no. 4, 544-553.
Aouf, M. K., Hossen, H. M., Notes on certain class of analytic functions defined by Ruscheweyh derivatives, Taiwanese J. Math., 1(1997), no. 1, 11-19.
Aouf, M. K., Mostafa, A. O., On partial sums of certain meromorphic p-valent functions, Math. Cumput. Modelling, 50(2009), no. 9-10, 1325-1331.
Aouf, M. K., Seoudy, T. M., Convolution properties for classes of bounded analytic functions with complex order defined by q-derivative operator, Rav. R. Acad. Cienc. Exactas Fis. Nat. Ser. A Math., 113(2019), no. 2, 1279-1288.
Aouf, M. K., Shamandy, A., Attiyia, A. A., Certain classes of analytic and multivalent functions with negative coefficients, Tr. J. Math., 20(1996), no. 3, 353-368.
Aouf, M. K., Shamandy, A., Mostafa, A. O., Adwan, E. A., Partial sums of certain of analytic functions difined by Dziok-Srivastava operator, Acta Univ. Apulensis, (2012), no. 30, 65-76.
Aouf, M. K., Shamandy, A., Mostafa, A. O., Madian, S. M., Inclusion properties of certain subclasses of analytic functions defined by generalized Sălăgean operator, Annales Univ. Mariae Curie-Sklodowska, Sectio A-Math., 54(2010), no. 1, 17-26.
Aral, A., Gupta, V., Agarwal, R. P., Applications of q-Calculas in Operator Theory, Springer, New York, NY, USA, 2013.
Attiya, A. A., Aouf, M. K., A study on certain class of analytic functions defined by Ruscheweyh derivatives, Soochow J. Math., 33(2007), no. 2, 273-289.
Frasin, B.A., Partial sums of certain analytic and univalent functions, Acta Math. Acad. Paed. Nyir, 21 (2005), 135-145.
Gasper, G., Rahman, M., Basic Hypergeometric Series, Combridge Univ. Press, Cambrididge, U. K. 1990.
Goodman, A. W., Univalent functions and nonanalytic curves, Proc. Amer. Math. Soc., 8 (1957), 598-601.
Jackson, F. H., On q-functions and a certain difference operator, Transactions of the Royal Society of Edinburgh, 46 (1908), 253 -- 281.
Kanas, S., Răducanu, D., Some class of analytic functions related to conic domains, Math. Slovaca, 64(2014), no. 5, 1183-1196.
Mostafa, A. O., On partial sums of certain analytic functions, Demonstratio Math., 41(2008), no. 4, 779-789.
Mostafa, A. O., Aouf, M. K., Neighborhoods of certain p-valent analytic functions of complex order, Comput. Math. Appl., 58 (2009), 1183-1189.
Murugusundaramoorthy, G., Srivastava, H.M., Neighborhoods of certain classes of analytic functions of complex order, J. Ineql. Pure Appl. Math., 5 (2004), no. 2, Art. 24, 1-8.
Owa, S., Polatoglu, Y., Yavuz, E., Coefficient inequalities for classes of uniformly starlike and convex functions, J. Inequal. Pure Appl. Math., 7 (2006), no. 5, Art. 160, 1-5.
Robertson, M. S., On the theory of univalent functions, Ann. Math., 37 (1936), 374 -- 408.
Rosy, T., Subramanian, K. G., Murugusundaramoorthy, G., Neighborhoods and partial sums of starlike functions based on Ruscheweyeh derivatives, J. Ineq. Pure Appl. Math., 4 (2003), no. 4, Art., 64, 1 -- 8.
Ruscheweyh, St., New criteria for univalent functions, Proc. Amer. Math. Soc., 49(1975), 109-115.
Ruscheweyh, St., Neighborhoods of univalent functions, Proc. Amer. Math. Soc., 81 (1981), 521-527.
Seoudy, T. M., Aouf, M. K., Convolution properties for certain classes of analytic functions defined by q-derivative operator, Abstract and Appl. Anal., 2014 (2014), 1-7.
Seoudy, T. M., Aouf, M. K., Coefficient estimates of new classes of q-convex functions of complex order, J. Math. Ineq., 10 (2016), no. 1, 135 - 145.
Shams, S., Kulkarni, S. R., Jahangiri, J. M., Classes of uniformly starlike and convex functions, Internat. J. Math. Math. Sci., 55 (2004), 2959-2961.
Sheil-Small, T., A note on partial sums of convex schlicht functions, Bull. London Math. Soc., 2 (1970), 165 -- 168.
Silverman, H., Partial sums of starlike and convex functions, J. Math. Appl., 209 (1997), 221 -- 227.
Srivastava, M. H., Mostafa, A. O., Aouf, M. K., Zayed, H. M.: Basic and fractional q-Calculas and associated Fake-Szego problem for p-valently q-starlike functions and p-valently q-convex functions of complex order, Miskole Math. Notes, 20(2019), no. 1, 489-509.
Downloads
Additional Files
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Transfer of copyright agreement: When the article is accepted for publication, the authors and the representative of the coauthors, hereby agree to transfer to Studia Universitatis Babeș-Bolyai Mathematica all rights, including those pertaining to electronic forms and transmissions, under existing copyright laws, except for the following, which the authors specifically retain: the authors can use the material however they want as long as it fits the NC ND terms of the license. The authors have all rights for reuse according to the license.