# Search results for: Jarosław Górnicki

Journal of Fixed Point Theory and Applications > 2020 > 22 > 1 > 1-7

*X*have the property that each such mapping has a unique fixed point and the fixed point can always be found using Picard iteration, beginning with some initial choice $$x\in X$$ x∈X .

Journal of Fixed Point Theory and Applications > 2019 > 21 > 1 > 1-20

Journal of Fixed Point Theory and Applications > 2018 > 20 > 1 > 1-12

Fixed Point Theory and Applications > 2016 > 2017 > 1 > 1-10

*F*-contraction and proved a fixed point theorem which generalizes the Banach contraction principle. Following this direction of research, in this paper, we present some new fixed point results for

*F*-expanding mappings, especially on a complete

*G*-metric space.

Fixed Point Theory and Applications > 2016 > 2017 > 1 > 1-12

Journal of Fixed Point Theory and Applications > 2017 > 19 > 3 > 2145-2152

Collectanea Mathematica > 2012 > 63 > 3 > 333-344

*k*-lipschitzian semigroup (one-parameter or left reversible semi-topological) in a uniformly convex Banach space is a retract of the domain if

*k*is close to 1. The results presented in this paper includes (among others, in the discrete situation) many known results as special cases.

Nonlinear Analysis > 2011 > 74 > 4 > 1190-1199

Journal of Mathematical Analysis and Applications > 2009 > 355 > 1 > 303-310

Fixed Point Theory and Applications > 2009 > 2009 > 1 > 1-12

Studia Mathematica > 1997 > 126 > 2 > 101-113