과제정보
This work was supported by a 2-Year Research Grant of Pusan National University.
참고문헌
- M. F. Atiyah and F. E. P. Hirzebruch, Spin-manifolds and group actions, in Essays on Topology and Related Topics (Memoires dedies a Georges de Rham), 18-28, Springer, New York, 1970.
- A. Haefliger, Sur l'extension du groupe structural d'une espace fibre, C. R. Acad. Sci. Paris 243 (1956), 558-560.