# Compositum

From Encyclopedia of Mathematics

*of field extensions*

The smallest subextension of an extension of a field containing two given subextensions and . It is the same as the image of the homomorphism that maps the tensor product to .

**How to Cite This Entry:**

Compositum.

*Encyclopedia of Mathematics.*URL: http://www.encyclopediaofmath.org/index.php?title=Compositum&oldid=11305