K-vector

In mathematics and physics, k-vector may refer to:

• The wave vector k
• Crystal momentum
• a multivector, also called a p-vector, which are dual to differential p-forms
• An element of a k-dimensional vector space, especially a four-vector is used in relativity to mean a quantity related to the four-dimensional spacetime, and in analogy, the term three-vector is sometimes used as a synonym for a spatial vector in three dimensions.