Mathematics Subject Classification 1991

16Kxx Division rings and semisimple Artin rings, See also {12E15, 15A30} ( 0 Dok. )

• 16K20 Finite-dimensional, {For Brauer group theory, See 12Gxx, 13A20; for crossed products, See 16S35} ( 0 Dok. )
• 16K40 Infinite-dimensional and general ( 0 Dok. )
• 16K99 None of the above but in this section ( 0 Dok. )