Research article

Certain subclasses of spiral-like functions associated with $ q $-analogue of Carlson-Shaffer operator

  • Received: 06 July 2020 Accepted: 21 December 2020 Published: 23 December 2020
  • MSC : 30C45, 30C50

  • In this paper, making use of the $ q $-analogue of Carlson-Shaffer operator $ L_{q}\left(a, c\right) $ we introduce a new subclass of spiral-like functions and discuss some subordination results and Fekete-Szego problem for this generalized function class. Further, some known and new results which follow as special cases of our results are also mentioned.

    Citation: Tamer M. Seoudy, Amnah E. Shammaky. Certain subclasses of spiral-like functions associated with $ q $-analogue of Carlson-Shaffer operator[J]. AIMS Mathematics, 2021, 6(3): 2525-2538. doi: 10.3934/math.2021153

    Related Papers:

  • In this paper, making use of the $ q $-analogue of Carlson-Shaffer operator $ L_{q}\left(a, c\right) $ we introduce a new subclass of spiral-like functions and discuss some subordination results and Fekete-Szego problem for this generalized function class. Further, some known and new results which follow as special cases of our results are also mentioned.



    加载中


    [1] M. H. Annaby, Z. S. Mansour, $q$-Fractional calculus and equations, Springer-Verlag Berlin Heidelberg, 2012.
    [2] M. K. Aouf, T. M. Seoudy, Convolution properties for classes of bounded analytic functions with complex order defined by $q$-derivative operator, RACSAM, 113 (2019), 1279-1288. doi: 10.1007/s13398-018-0545-5
    [3] A. Aral, V. Gupta, R. P. Agarwal, Applications of $q$-calculus in operator theory, New York: Springer, 2013.
    [4] T. Bulboacǎ, Differential subordinations and superordinations, new results, Cluj-Napoca: House of Scientific Boook Publ., 2005.
    [5] B. C. Carlson, S. B. Shaffer, Starlike and prestarlike hypergrometric functions, SIAM J. Math. Anal., 15 (2002), 737-745.
    [6] G. Gasper, M. Rahman, Basic hypergeometric series, Cambridge: Cambridge University Press, 1990.
    [7] V. G. Kac, P. Cheung, Quantum calculus, New York: Springer-Verlag, 2002.
    [8] S. Kanas, D. Raducanu, Some subclass of analytic functions related to conic domains, Math. Slovaca, 64 (2014), 1183-1196. doi: 10.2478/s12175-014-0268-9
    [9] F. R. Keogh, E. P. Merkes, A coefficient inequality for certain classes of analytic functions, P. Am. Math. Soc., 20 (1969), 8-12. doi: 10.1090/S0002-9939-1969-0232926-9
    [10] R. J. Libera, Univalent a-spiral functions, Can. J. Math., 19 (1967), 449-456. doi: 10.4153/CJM-1967-038-0
    [11] S. S. Miller, P. T. Mocanu, Differential subordinations: theory and applications, New York: Marcel Dekker Inc., 2000.
    [12] Z. Nehari, Conformal mapping, New-York: McGraw-Hill, 1952.
    [13] H. Orhan, D. Raducanu, M. Caglar, M. Rayram, Coefficient estimates and other properties for a class of spirallike functions associated with a differential operator, Abstr. Anal. Appl., 2013 (2013), 1-7.
    [14] S. Ruscheweyh, New criteria for univalent functions, P. Am. Math. Soc., 49 (1975), 109-115. doi: 10.1090/S0002-9939-1975-0367176-1
    [15] T. M. Seoudy, M. K. Aouf, Convolution properties for certain classes of analytic functions defined by $q$-derivative operator, Abstr. Anal. Appl., 2014 (2014), 1-7.
    [16] T. M. Seoudy, M. K. Aouf, Coefficient estimates of new classes of $q$-starlike and $q$-convex functions of complex order, J. Math. Inequal., 10 (2016), 135-145.
    [17] L. Špaček, Contribution à la theorie des fonctions univalents, Cas. Mat. Fys., 62 (1932), 12-19.
    [18] H. M. Srivastava, A. K. Mishra, M. K. Das, The Fekete-Szego problem for a subclass of close-to-convex functions, Complex Var. Theory Appl., 44 (2001), 145-163.
    [19] H. S. Wilf, Subordinating factor sequence for convex maps of the unit circle, P. Am. Math. Soc., 12 (1961), 689-693. doi: 10.1090/S0002-9939-1961-0125214-5
  • Reader Comments
  • © 2021 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Metrics

Article views(1529) PDF downloads(48) Cited by(7)

Article outline

Other Articles By Authors

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return

Catalog