Commutative formal groups

The formulations of several results on the structure of commutative formal groups of any dimensional over rings without -torsion are given, and also a geometric construction of a class of formal groups arising from algebraic manifolds is given. Proofs are only outlined.Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova AN SSSR, Vol. 57, pp. 117–124, 1976.