Annals of Mathematics, Bände 9-10

a₁ absolutely convergent ANNALS OF MATHEMATICS B₁ B₂ binary calculus of variations catenary coefficient symbol condition conic conic section constant convergent determinant corresponding covariant covariants and invariants cubic curve denote derived differells differential equation dihedron-points ECHOLS equal expression factor finite formula function geometrical given circle gives Hence hexagon infinite determinant infinite number infinite series integral integrell intersection interval involution Laplace's line at infinity line or column linear m₁ Math negative obtain operator ORMOND STONE P₁ plane points positive projective transformation quantic quantities quaternion ratio relations represented root symbol S₁ S₂ semi-invariant solution substitution tangent Taylor's theorem tion transvectants triangle u₁ u₂ vanish variables vector whence Y₁ zero Ալ