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Lifting Problem

Given a Map $f$ from a Space $X$ to a Space $Y$ and another Map $g$ from a Space $Z$ to a Space $Y$, does there exist a Map $h$ from $X$ to $Z$ such that $gh=f$? If such a map $h$ exists, then $h$ is called a Lift of $f$.

See also Extension Problem, Lift




© 1996-9 Eric W. Weisstein
1999-05-25