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Two-form
In differential geometry, a two-form refers to a differential form of degree two. In other words, a two-form is a skew-symmetric covariant tensor field of order 2.
For a given vector space, the space of two-forms is spanned by the wedge product of basis one-forms. See differential form.
The dual of a two-form is a two-vector.
==See also==
* Mixed tensor
* Metric tensor
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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