Starlikeness and related properties of certain integral operator for multivalent functions

Authors

  • Ram Narayan MOHAPATRA Department of Mathematics University of Central Florida Orlando, FL. 32816, USA, e-mail: ram.mohapatra@ucf.edu https://orcid.org/0000-0002-5502-3934
  • Trailokya PANIGRAHI Department of Mathematics School of Applied Sciences, KIIT University Bhubaneswar-751024, Orissa, India, e-mail: trailokyap6@gmail.com

DOI:

https://doi.org/10.24193/subbmath.2017.0006

Keywords:

p-valent starlike, convex and close-to-convex functions, strongly starlike function, convolution, integral operator.

Abstract

In this paper, the authors introduce a new general integral opera- tor for multivalent functions. The new sufficient conditions for the operator Jp,γ,g (f1, f2, ..., fn) when γ = 1 is determined for the class of p-valently star- like, p-valently close-to-convex, uniformly p-valent close-to-convex and strongly starlike of order δ (0 < δ 1) in U. Our results generalize the results of Frasin [7].

Mathematics Subject Classification (2010): 30C45.

References

Alexander, W., Functions which map the interior of the unit circle upon simple regions, Ann. Math., 17(1915), no. 1, 12-22.

Al-Kharsani, H.A., Al-Hajiry, S.S., A note on certain inequalities for p-valent functions, J. Inequal. Pure Appl. Math., 9(2008), no. 3.

Breaz, D., Breaz, N., Two integral operators, Stud. Univ. Babe¸s-Bolyai Math., Cluj-Napoca, 3(2002), 13-19.

Breaz, D., Owa, S., Breaz, N., A new integral univalent operator, Acta Univ. Apul., 16(2008), 11-16.

Dorf, M., Szynal, J., Linear invariance and integral operators of univalent functions, Demonstratio Math., 38(2005), no. 1, 47-57.

Dziok, J., Applications of the Jack lemma, Acta Math. Hungar., 105(2004), no. 1-2, 93-102.

Frasin, B.A., New general integral operators of p-valent functions, J. Inequal. Pure Appl. Math., 10(2009), no. 4.

Frasin, B.A., Order of convexity and univalency of general integral operator, J. Franklin Institute, 348(2011), 1013-1019.

Goodman, A.W., On uniformly starlike functions, J. Math. Anal. Appl., 55(1991), 364-370.

Goswami, P., Bulut, S., Starlikeness of general integral operator for meromorphic multivalent functions, J. Complex Anal., Vol. 2013, Art. ID 690584.

Miller, S.S., Mocanu, P.T., Reade, M.O., Starlike integral operators, Pacific J. Math., 79(1978), no. 1, 157-168.

Nunokawa, M., On the multivalent functions, Indian J. Pure Appl. Math., 20(1989), 577-582.

Nunokawa, M., Owa, S., Ikeda, A., On the strongly starlikeness of multivalently convex functions of order α, IJMMS, 28(2001), no. 1, 51-55.

Owa, S., On the Nunokawa’s conjecture for multivalent functions, Bull. Austral. Math. Soc., 41(1990), 301-305.

Pascu, N., Pescar, V., On the integral operators of Kim-Merkis and Pfaltzgraff, Mathematica, 32(1990), no. 55, 185-192.

Pfaltzgraff, J.A., Univalence of the integral of ft(z)λ, Bull. London Math. Soc., 7(1975), no. 3, 254-256.

Raina, R.K., Bapna, I.B., Inequalities defining certain subclasses of analytic functions involving fractional calculus operators, J. Inequal. Pure Appl. Math., 5(2004), no. 2.

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Published

2017-03-01

How to Cite

MOHAPATRA , R. N., & PANIGRAHI , T. (2017). Starlikeness and related properties of certain integral operator for multivalent functions. Studia Universitatis Babeș-Bolyai Mathematica, 62(1), 77–87. https://doi.org/10.24193/subbmath.2017.0006

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