On Properties of q-Close-to-Convex Harmonic Functions of Order α


Çakmak S.

Turkish Journal of Mathematics and Computer Science, cilt.16, sa.2, ss.471-480, 2024 (Scopus, TRDizin) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 16 Sayı: 2
  • Basım Tarihi: 2024
  • Doi Numarası: 10.47000/tjmcs.1507142
  • Dergi Adı: Turkish Journal of Mathematics and Computer Science
  • Derginin Tarandığı İndeksler: Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.471-480
  • Anahtar Kelimeler: coefficient bounds, distortion, harmonic functions, q-close-to-convex functions, q-Derivative
  • İstanbul Gelişim Üniversitesi Adresli: Evet

Özet

In this paper, a novel subclass, denoted as PH(q, α), is unveiled within the domain of harmonic functions in the open unit disk E. This subclass, comprised of functions f = u + v ∈ SH0, is characterized by a specific inequality involving the q-derivative operator. Through meticulous analysis, it is demonstrated that functions belonging to PH(q, α) exhibit remarkable close-to-convexity properties. Furthermore, diverse results such as distortion theorem, coefficient bounds, and a sufficient coefficient condition are yielded by the exploration. Additionally, the closure properties of PH(q, α) under convolution operations and convex combination are elucidated, underscoring its structural coherence and relevance in the broader context of harmonic mappings.