plural of unitary matrix

plural of unitary group

(group theory) For given n, the group of n×n unitary matrices, with the group operation of matrix multiplication.

plural of unitary authority

In local government, a single-tier authority which replaces a two-tier structure. For example, in England, county councils are abolished and their responsibilities are transferred to boroughs and local government districts (but this only applies to some counties, not all). In some cases complete counties, such as Cornwall and Northumberland, are now unitary authorities without any subdivision into local government districts.

plural of unitary psychosis

(historical) According to 19th-century German psychiatry, a single underlying disease process of which all psychoses were surface variations.

plural of unitary matrix

(linear algebra, group theory) For given n, the group of n×n unitary matrices with complex elements and determinant equal to one.

plural of special unitary group