Noncommutative gauge theories with boundary

Mahmoud Zenga, Ayman M. Ghanbari, Alexander A. Kharzeev
Comments: 11 pages, 2 figures, minor improvements, references added

We consider the noncommutative gauge theories with a boundary in four dimensions. We study the properties of the boundary and the structure of the gauge group. In particular, we show that the boundary of the gauge theory is a four-dimensional G2-F2-F2-F2-F2-F2-F2-F2-F2 gauge group.