Distance to a set

For a metric space,

d (x, S) = in f_{s \in S} d (x, s)

is

1

-Lipschitz and vanishes on the closure of

S

.

 Ancestors (6)

 Incoming links (6)

Compact-sublevel convergence of the residual method
Past exam of the mathematics course of the University of Cambridge / 2001 / iii / Paper 6 / 1 / Solution
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