Next:
openly minimal
Up:
Definitions
Previous:
OM-mapping
open
A mapping
f
of a space
X
into a space
Y
is
open
if, for each open
A
in
X
the image
f
(
A
) is open in
Y
.
Janusz J. Charatonik, Pawel Krupski and Pavel Pyrih
2001-02-21
