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Escaping bump counterexample to global uniform convergence
...
Area of mathematics
Analysis
Topological analysis
Equicontinuous family of functions
Arzela-Ascoli theorem
Diagonal subsequence for locally uniform convergence
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Words: 35
For a compactly supported nonzero function
ψ
, the translates
f
n
(
x
)
=
ψ
(
x
−
n
)
converge uniformly to zero on every compact subset of
R
, while
∥
f
n
∥
∞
=
∥
ψ
∥
∞
prevents uniform convergence on all of
R
.
Ancestors
(8)
Diagonal subsequence for locally uniform convergence
Arzela-Ascoli theorem
Equicontinuous family of functions
Topological analysis
Analysis
Area of mathematics
Mathematics
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