Person: YAVUZ, EMEL
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YAVUZ
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EMEL
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Publication Metadata only On lambda-fractional convex functions(2007) Owa, Shigeyoshi; YAVUZ, EMEL; POLATOĞLU, YAŞAR; 199370; 111202Publication Metadata only On some first-order differential subordination(2014-07) Nunokawa, M.; Sokół, J.; Cho, N.E.; Owa, S.; YAVUZ, EMEL; 111202Let denote the class of functions f that are analytic in the unit disc and normalized by f(0) = f′(0) − 1 = 0. In this paper, we investigate the class of functions such that in . We determine conditions for α and β under which the function f is univalent, close-to-convex, and convex. To obtain this, we first estimate ∣Arg{f′(z)}∣ which improves the earlier results.Publication Metadata only Marx-Strohhacker inequality for Mocanu-Janowski alpha-convex functions(2007) YAVUZ, EMEL; POLATOĞLU, YAŞAR; 199370; 111202Let be the class of functions w(z) regular in the unit disc D = {z : |z| < 1} with w(0) = 0, and |w(z)| < 1. For arbitrarily fixed real numbers A 2 ( 1,1) and B 2 ( 1,A), let P(A, B) be the class of regular functions p(z) in D such that p(0) = 1, and p(z) 2 P(A, B) if and only if p(z) = 1+Aw(z) 1+Bw(z) for every z 2 D, for some w(z) 2 . In the present paper we apply the subordination principle to give new proofsPublication Metadata only New results of the generalization of Sakaguchi functions(2009) YAVUZ, EMEL; POLATOĞLU, YAŞAR; 199370; 111202Publication Metadata only Some results on a subclass of p-valent starlike functions(International Symposium on New Development of Geometric Function Theory and Its Applications, GFTA 2008, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia, 2008) YAVUZ, EMEL; POLATOĞLU, YAŞAR; 199370; 111202Publication Metadata only lambda-fractional close-to-convex functions(International Symposium on Geometric Function Theory and Applications, 2007, Istanbul Kültür University, Istanbul, Turkey, 2007) YAVUZ, EMEL; POLATOĞLU, YAŞAR; 199370; 111202Publication Metadata only An investigation on a subclass of p-valently starlike functions in the unit disc(TÜBİTAK, 2007) Bolcal, A.; Şen, A.; YAVUZ, EMEL; POLATOĞLU, YAŞAR; TR199370; TR111202Let A(p) denote the class of functions of the form f(z) = z(p) +a(p+1)z(p+1)+a(p+2)z(p+2) +... which are regular and p-valent in the open unit disc D = {z : vertical bar z vertical bar < 1}. Let M-p(alpha) be the subclass of A(p) consisting of functions f(z) which satisfy Re(zf'(x)/f(z)) < alpha, (z is an element of D) for some real alpha (alpha > 1). The aim of this paper is to give a representation theorem, a distortion theorem and a coefficient inequality for the class M-p(alpha).Publication Metadata only Multivalued p-valent starlike functions(2007) Çağlar, M.; Şen, A.; Owa, Shigeyoshi; YAVUZ, EMEL; POLATOĞLU, YAŞAR; 199370Publication Metadata only Notes on certain analytic functions(SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, ATATURK BULVARI NO 221, KAVAKLIDERE, TR-06100 ANKARA, TURKEY, 2019) Owa, Shigeyoshi; YAVUZ, EMEL; 111202Let A(n) be the class of functions f(z) = a(n)z(n) + a(n+1)z(n+1) +...(n is an element of N), which are analytic in the open unit disk U, where a(n) not equal 0. For f(z) is an element of A(n), Miller and Mocanu in 1978 showed a very interesting result for f(z). Applying the result due to Miller and Mocanu, we would like to consider some new results for such functions. Our results in this paper are generalizations for results by Nunokawa in 1992.