# Integral operator

From HandWiki

An **integral operator** is an operator that involves integration. Special instances are:

- The operator of integration itself, denoted by the integral symbol
- Integral linear operators, which are linear operators induced by bilinear forms involving integrals
- Integral transforms, which are maps between two function spaces, which involve integrals

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Original source: https://en.wikipedia.org/wiki/Integral operator.
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