A note on a differential concomitant

P. R. Eiseman, A. P. Stone
1975 Proceedings of the American Mathematical Society  
If h and k are vector 1-forms, the vanishing of the con-AMS (MOS) subject classifications (1970). Primary 53C15; Secondary 53A55.
doi:10.1090/s0002-9939-1975-0383445-3 fatcat:kbyejgtyhrennagc6lqe74bsg4