3 papers
math.GN2021
Contractions, inwardness, tool theorems
Lech Pasicki
The paper is devoted to the fixed point theory in four aspects: of contractions, nonexpansive mappings, generalized inward mappings, and of the tool theorems. The manuscript was wr…
math.FA2021
Istances and Brøndsted's variational principle
Lech Pasicki
The manuscript contains elegant extensions of the fundamental variational principles: Brøndsted's and Ekeland's. On the other hand we get general and precise version of the Takahas…
math.GN2021
Nonexpansive fixed point theorems for primitive uniform spaces
Lech Pasicki
Some known fixed point theorems for nonexpansive mappings in metric spaces are extended here to the case of primitive uniform spaces. The reasoning presented in the proofs seems to…