Chern, Shiing-shen; Simons, James Characteristic forms and geometric invariants. (English) Zbl 0283.53036 Ann. Math. (2) 99, 48-69 (1974). Cited in 14 ReviewsCited in 282 Documents MSC: 53C20 Global Riemannian geometry, including pinching 57R40 Embeddings in differential topology 53A30 Conformal differential geometry (MSC2010) 57R20 Characteristic classes and numbers in differential topology PDF BibTeX XML Cite \textit{S.-s. Chern} and \textit{J. Simons}, Ann. Math. (2) 99, 48--69 (1974; Zbl 0283.53036) Full Text: DOI Link