(algebra) A polynomial which remains unchanged if its variables are permuted

Alternative spelling of skew-symmetric

(linear algebra) Of a matrix, satisfying A^( textsf )T=-A, i.e. having entries on one side of the diagonal that are the additive inverses of their correspondents on the other side of the diagonal and having only zeroes on the main diagonal.

plural of symmetric polynomial

(set theory) The set that contains all elements belonging to either of given two sets but not to the both; the relative complement of the intersection in the union of given two sets.

(mathematics) A group whose elements are precisely all of the bijections of some set with itself and whose operation is composition of those bijections.

plural of symmetric group

(mathematics) A square matrix that is its own transpose, and is thereby symmetric about the main diagonal

plural of symmetric function

plural of symmetric matrix