摘要
The existence or nonexistenoe of weakly almost complex structures and almost complex structures on Dold manifolds are studied, and the problems are partially solved.
The existence or nonexistenoe of weakly almost complex structures and almost complex structures on Dold manifolds are studied, and the problems are partially solved.
基金
National Natural Science Foundation of China
the State Education Commission Foundation of China
the Foundation of the Academy of Sciences.