---
tag: 0GRAATMGP1
kind: concept
name: Wedge product of forms
aliases: [exterior-product-of-forms]
msc: [15A75]
uses: [0E3G0GRPZ6]
sources:
  - url: https://en.wikipedia.org/wiki/Differential_form
    locator: Exterior product
---

## Summary

The wedge product combines a $k$-form and an $l$-form into a $(k + l)$-form.
It is bilinear and alternating, and it encodes signed areas and volumes. It makes the [[differential forms|0E3G0GRPZ6]] on a set into an algebra.