Some external problems in the class of holomorphic univalent functions
Siejka, Henryka (2015-12-13T10:57:27Z)
Acta Universitatis Lodziensis. Folia Mathematica
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Siejka, Henryka (2015-12-13T10:57:27Z)
Acta Universitatis Lodziensis. Folia Mathematica
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Elin, Mark, Shoikhet, David (2006)
International Journal of Mathematics and Mathematical Sciences
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Henryka Śmiałek (1983)
Banach Center Publications
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Brown, R.K. (1982)
International Journal of Mathematics and Mathematical Sciences
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Bălăeţi, Camelia Mădă lina (2008)
Acta Universitatis Apulensis. Mathematics - Informatics
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Ewa Ligocka (2009)
Bulletin of the Polish Academy of Sciences. Mathematics
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We study a correspondence L between some classes of functions holomorphic in the unit disc and functions holomorphic in the left halfplane. This correspondence is such that for every f and w ∈ ℍ, exp(L(f)(w)) = f(expw). In particular, we prove that the famous class S of univalent functions on the unit disc is homeomorphic via L to the class S(ℍ) of all univalent functions g on ℍ for which g(w+2πi) = g(w) + 2πi and .
Renata Jurasińska, Jan Stankiewicz (2003)
Annales Polonici Mathematici
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We present some results connected with estimation of the coefficients for some special class of functions holomorphic in the unit disc and defined by subordination to some multivalent functions.
Haakon Waadeland (1980)
Annales Polonici Mathematici
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Abstract. Let S denote the family of functions f, holomorphic and univalent in the open unit disk U, and normalized by f(0) = 0, f'(0) = 1.
Goodman, A.W. (1979)
International Journal of Mathematics and Mathematical Sciences
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Szwankowaki, Andrzej (2015-11-13T12:50:52Z)
Acta Universitatis Lodziensis. Folia Mathematica
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Szwankowski, Andrzej (2015-12-18T19:21:18Z)
Acta Universitatis Lodziensis. Folia Mathematica
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Oros, Georgia Irina (2003)
International Journal of Mathematics and Mathematical Sciences
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Ahuja, O.P., Silverman, H. (1983)
International Journal of Mathematics and Mathematical Sciences
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Trimble, S.Y. (1987)
International Journal of Mathematics and Mathematical Sciences
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Polatoğlu, Y., Bolcal, M. (2003)
Mathematica Pannonica
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Abdulhadi, Zayid (1996)
International Journal of Mathematics and Mathematical Sciences
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Larisa Gromova, Alexander Vasil'ev (1996)
Annales Polonici Mathematici
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The functional |c₄ + pc₂c₃ + qc³₂| is considered in the class of all univalent holomorphic functions in the unit disk. For real values p and q in some regions of the (p,q)-plane the estimates of this functional are obtained by the area method for univalent functions. Some new regions are found where the Koebe function is extremal.