atshan, waggas galibAL-SAJJAD, Reaam AbdAltınkaya, şahsene2026-01-312026-01-3120232147-1762https://doi.org/10.35378/gujs.958309https://search.trdizin.gov.tr/tr/yayin/detay/1303396https://hdl.handle.net/20.500.12662/10431In this article, we aim to describe a new operator J_(s,a,?)^(?,?) via convolution. Moreover, we aim to present a new subclass C_?m (?;?) related to m-fold symmetric bi-univalent functions in the open unit disk ?={z?C?|z| ? 1 }. Finally, an estimate related to the Hankel determinant for functions in C_?m (?;?) are given. eninfo:eu-repo/semantics/openAccessUnivalent functionHankel determinantCoefficient estimateArticle10.35378/gujs.9583093601349130339636