Akyel, TugbaOrnek, Bulent Nafi2024-07-122024-07-12202010.5269/bspm.v38i7.466332-s2.0-85077442774https://doi.prg/10.5269/bspm.v38i7.46633https://hdl.handle.net/20.500.12415/2798In this paper, a boundary version of the Schwarz lemma for classes N(beta) is investigated. For the function f(z) = 1/z + a(0) + a(1)z + a(2) z(2) +... defined in the punctured disc E such that f(z) is an element of N(beta), we estimate a modulus of the angular derivative of the function zf'(z)/f(z) at the boundary point c with cf '(c)/f(c) = 1-2 beta/beta. Moreover, Schwarz lemma for class N(beta) is given.enCC0 1.0 Universalinfo:eu-repo/semantics/openAccessSCHWARZ-LEMMAArticle150314138WOS:000496299300017N/A