GEOMETRIC PROPERTIES OF STARLIKENESS INVOLVING HYPERBOLIC COSINE FUNCTION

Ahuja O. p., Cetinkaya A., Kumar S.

COMMUNICATIONS OF THE KOREAN MATHEMATICAL SOCIETY, cilt.39, sa.2, ss.407-420, 2024 (ESCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 39 Sayı: 2
  • Basım Tarihi: 2024
  • Doi Numarası: 10.4134/ckms.c230109
  • Dergi Adı: COMMUNICATIONS OF THE KOREAN MATHEMATICAL SOCIETY
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, zbMATH
  • Sayfa Sayıları: ss.407-420
  • İstanbul Kültür Üniversitesi Adresli: Evet

Özet

In this paper, we investigate some geometric properties of starlikeness connected with the hyperbolic cosine functions defined in the open unit disk. In particular, for the class of such starlike hyperbolic cosine functions, we determine the lower bounds of partial sums, BriotBouquet differential subordination associated with Bernardi integral operator, and bounds on some third Hankel determinants containing initial coefficients.