On the order of convolution consistence of the analytic functions with negative coefficients

Grigore S. Sălăgean; Adela Venter

Mathematica Bohemica (2017)

  • Volume: 142, Issue: 4, page 381-386
  • ISSN: 0862-7959

Abstract

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Making use of a modified Hadamard product, or convolution, of analytic functions with negative coefficients, combined with an integral operator, we study when a given analytic function is in a given class. Following an idea of U. Bednarz and J. Sokół, we define the order of convolution consistence of three classes of functions and determine a given analytic function for certain classes of analytic functions with negative coefficients.

How to cite

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Sălăgean, Grigore S., and Venter, Adela. "On the order of convolution consistence of the analytic functions with negative coefficients." Mathematica Bohemica 142.4 (2017): 381-386. <http://eudml.org/doc/294339>.

@article{Sălăgean2017,
abstract = {Making use of a modified Hadamard product, or convolution, of analytic functions with negative coefficients, combined with an integral operator, we study when a given analytic function is in a given class. Following an idea of U. Bednarz and J. Sokół, we define the order of convolution consistence of three classes of functions and determine a given analytic function for certain classes of analytic functions with negative coefficients.},
author = {Sălăgean, Grigore S., Venter, Adela},
journal = {Mathematica Bohemica},
keywords = {analytic function with negative coefficients; univalent function; extreme point; order of convolution consistence; starlikeness; convexity},
language = {eng},
number = {4},
pages = {381-386},
publisher = {Institute of Mathematics, Academy of Sciences of the Czech Republic},
title = {On the order of convolution consistence of the analytic functions with negative coefficients},
url = {http://eudml.org/doc/294339},
volume = {142},
year = {2017},
}

TY - JOUR
AU - Sălăgean, Grigore S.
AU - Venter, Adela
TI - On the order of convolution consistence of the analytic functions with negative coefficients
JO - Mathematica Bohemica
PY - 2017
PB - Institute of Mathematics, Academy of Sciences of the Czech Republic
VL - 142
IS - 4
SP - 381
EP - 386
AB - Making use of a modified Hadamard product, or convolution, of analytic functions with negative coefficients, combined with an integral operator, we study when a given analytic function is in a given class. Following an idea of U. Bednarz and J. Sokół, we define the order of convolution consistence of three classes of functions and determine a given analytic function for certain classes of analytic functions with negative coefficients.
LA - eng
KW - analytic function with negative coefficients; univalent function; extreme point; order of convolution consistence; starlikeness; convexity
UR - http://eudml.org/doc/294339
ER -

References

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  1. Bălăeţi, C. M., An integral operator associated with differential superordinations, An. Ştiinţ. Univ. "Ovidius" Constanţa Ser. Mat. 17 (2009), 37-44. (2009) Zbl1199.30049MR2573368
  2. Bednarz, U., Sokół, J., On order convolution consistence of the analytic functions, Stud. Univ. Babeş-Bolyai Math. 55 (2010), 45-51. (2010) Zbl1240.30037MR2764250
  3. Gupta, V. P., Jain, P. K., 10.1017/S0004972700025326, Bull. Aust. Math. Soc. 14 (1976), 409-416. (1976) MR0414849DOI10.1017/S0004972700025326
  4. Sălăgean, G. S., 10.1007/BFb0066543, Complex Analysis, Proceedings 5th Rom.-Finn. Semin., Bucharest 1981, Part 1 (C. Andreian Cazacu at al., eds.) Lecture Notes in Math. 1013. Springer, Berlin (1983), 362-372. (1983) Zbl0531.30009MR0738107DOI10.1007/BFb0066543
  5. Sălăgean, G. S., Classes of univalent functions with two fixed points, Itinerant Seminar on Functional Equations, Approximation and Convexity, Cluj-Napoca, 1984 Univ. "Babeş-Bolyai'' (1984), 181-184. (1984) MR0788744
  6. Sălăgean, G. S., On univalent functions with negative coefficients, Prepr., "Babeş-Bolyai'' Univ., Fac. Math. Phys., Res. Semin. 7 (1991), 47-54. (1991) Zbl0766.30010MR1206741
  7. Schild, A., Silverman, H., Convolutions of univalent functions with negative coefficients, Ann. Univ. Mariae Curie-Skłodowska, Sect. A (1975) 29 (1977), 99-107. (1977) Zbl0363.30018MR0457698
  8. Silverman, H., 10.2307/2039855, Proc. Am. Math. Soc. 51 (1975), 109-116. (1975) MR0369678DOI10.2307/2039855

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