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math.FA2025
Admissible perturbations of a multivalued Picard operator: Ćirić contraction condition; fixed point and stability results
Cristina Gheorghe
This paper studies strict fixed point and stability results for multivalued operators which does not satisfy a Ćirić type contraction condition, but their admissible perturbation d…
math.FA2025
Strict fixed point problem, stability results and retraction displacement condition for Picard operators
Cristina Gheorghe, Adrian Petruşel
The aim of this paper is to give strict fixed point principles for multivalued operators satisfying some contraction conditions of Ćiri\' c and of Ćiri\' c-Re…