Admissible Hybrid <math xmlns="http://www.w3.org/1998/Math/MathML" id="M1"> <mi mathvariant="script">Z</mi> </math>-Contractions in Extended <math xmlns="http://www.w3.org/1998/Math/MathML" id="M2"> <mi>b</mi> </math>-Metric Spaces
Advances in mathematical physics