DSpace@Çankaya

Yazar "Petruşel, Adrian" için listeleme

Yazar "Petruşel, Adrian" için listeleme

Sırala: Sıra: Sonuçlar:

  • Frum-ketkov type multivalued operators 
    Karapınar, Erdal; Petruşel, Adrian; Petruşel, Gabriela (2021)
    Let (M, d) be a metric space, X ⊂ M be a nonempty closed subset and K ⊂ M be a nonempty compact subset. By definition, an upper semi-continuous multivalued operator F: X → P (X) is said to be a strong Frum-Ketkov type ...
  • New results on start-points for multi-valued maps 
    Gaba, Yaé Ulrich; Karapınar, Erdal; Petruşel, Adrian; Radenović, Stojan (2020-12)
    In this manuscript we investigate the existence of start-points for the generalized weakly contractive multi-valued mappings in the setting of left K-complete quasi-pseudo metric space. We provide an example to support the ...
  • On admissible hybrid geraghty contractions 
    Karapınar, Erdal; Petruşel, Adrian; Petruşel, Gabriela (2020)
    In this manuscript, we introduce the notion of admissible hybrid Geraghty contraction and we investigate the existence of fixed points of such mappings in the setting of complete metric spaces. Our results not only extend ...