Second Hankel determinant for a certain subclass of analytic functions defined by close-to-convex functions and the Salagean derivative operator

ORHAN H., Arıkan H., Başıbüyük E.

Afrika Matematika, cilt.37, sa.2, 2026 (ESCI, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37 Sayı: 2
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1007/s13370-026-01449-3
  • Dergi Adı: Afrika Matematika
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, MathSciNet, zbMATH
  • Anahtar Kelimeler: Analytic functions, Close-to convex functions, Fekete–Szegö problem, Hankel determinant, Hankel determinant problem, Salagean derivative operator, Univalent functions
  • Atatürk Üniversitesi Adresli: Evet

Özet

In this investigation, we derive Fekete–Szegè inequalities and upper bounds for the second Hankel determinant for a new subclass of analytic functions in the open unit disk formed by the close-to-convex functions and the Salagean derivative operator. Additionally, there is discussion of a number of intriguing applications of the findings given here.