In 1972, Cheeger advanced a question based on his construction of symmetric spaces of rank one as follows Let M1 and M2 be compact Riemannian manifolds of positive sectional curvature. One can
文摘In 1972, Cheeger advanced a question based on his construction of symmetric spaces of rank one as follows Let M1 and M2 be compact Riemannian manifolds of positive sectional curvature. One can