EntityQ2835967· pop 5· linked from 50 articlesquaternion algebraSign in to savegeneralization of quaternions to other fieldsConnectionsquadratic fieldEntityisomorphismEntityp-adic numberEntitymathematicsEntityInternational Standard Book NumberEntityprime numberEntitynumber theoryEntityreal numberEntityrational numberEntitydigital object identifierEntityvector spaceEntityconic sectionEntityquaternionEntityfieldEntitymultiplicative inverseEntitymodular arithmeticEntitybasisEntityCambridge University PressEntityalgebraic number theoryEntityalgebraic number fieldEntityCategoriesComposition algebrasQuaternions