EntityQ428091· pop 10· linked from 127 articlestensor contractionSign in to savein mathematics and physics, an operation on tensorsConnectionsdifferential formEntityRicci calculusEntitybasisEntityEinstein notationEntitydual spaceEntitytensor fieldEntityRicci curvatureEntitycovariant derivativeEntitydyadic productEntitymusical isomorphismEntitymathematicsEntityAlbert EinsteinPersonphysicsEntityCarl Friedrich GaussEntityLeonhard EulerEntityengineeringEntityInternational Standard Book NumberEntitygeneral relativityEntityelectromagnetismEntitymathematicianEntityCategoriesTensors