%0 Journal Article %T Approximate maps characterizing injectivity and surjectivity of maps %A Miyata %A Takahisa %J - %D 2017 %R 10.3336/gm.52.1.14 %X Sa£¿etak In the theory of inverse systems, in order to study the properties of a space X or a map f: X ¡ú Y between spaces, one expands X to an inverse system X or expands f to a map f: X ¡ú Y between the inverse systems, and then work on X or f. In this paper, we define approximate injectivity (resp., surjectivity) for approximate maps, and show that a map f: X ¡ú Y between compact metric spaces is injective (resp., surjective) if and only if any approximate map f %K Injective map %K surjective map %K epimorphism %K monomorphism %K approximate map %K shape %U https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=270034