Attitude quaternion

boundary value problem of quaternion numbers

bounded quaternion linear operators

commutative quaternion algebra

complex presentation of quaternion

complex quaternion

conjugate quaternion

discrete quaternion cosine-transform(DQCT)

distribution function of quaternion Wishart matrix

dual quaternion

EP matrix over the Quaternion field

error quaternion

Generalized quaternion

Generalized quaternion algebra

generalized quaternion algebras

generalized quaternion group

generalized quaternion groups

generalized quaternion ring

hydro-structure of quaternion

Imaginary Part of Right Eigenvalues of Quaternion Matrix