Immersions and embeddings of projective spaces

S. Feder, D. M. Segal
1972 Proceedings of the American Mathematical Society  
The topic is embedding and immersions of complex and quaternionic projective spaces. The results are obtained using spin representations and relating these with the various X-theories in which they occur. A numerical result on nonembeddings and and nonimmersions is obtained.
doi:10.1090/s0002-9939-1972-0321111-8 fatcat:ikpk23po75d3nobbovlgb6ucey