Approach Space
In topology, approach spaces are a generalization of metric spaces, based on point-to-set distances, instead of point-to-point distances. They were introduced by Robert Lowen in 1989.
Read more about Approach Space: Definition, Examples, Equivalent Definitions, Categorical Properties
Famous quotes containing the words approach and/or space:
“I approach these questions unwillingly, as it wounds, but no cure can be effected without touching upon and handling them.”
—Titus Livius (Livy)
“I would have broke mine eye-strings, cracked them, but
To look upon him, till the diminution
Of space had pointed him sharp as my needle;
Nay, followed him till he had melted from
The smallness of a gnat to air, and then
Have turned mine eye and wept.”
—William Shakespeare (1564–1616)