Real functions Differentiation Concept
Bump function
Summary
A bump function is a smooth function that vanishes outside a bounded region. Such functions exist because some smooth functions are not analytic. They are used to cut off, localize and glue functions. Examples are smooth partitions of unity, mollification, and test functions in the theory of distributions.
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About this page
| Tag | HS65DW0HXH |
|---|---|
| URI | m2://HS65DW0HXH |
| Kind | concept |
| Writing | W0 stub |
| MSC | 26E10, 46F05 |
| Specializes | Smooth function |
| Same as | |
| Changed | 2 November 2026 |
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