Abstract:
For a certain class of rings it is shown that any formal group over a ring in the class can be realized as the formal group of a generalized cohomology theory, and that a multiplicative theory with the ring of a point in this same class is uniquely determined by its formal group. The results are applied to prove a theorem of Conner–Floyd type concerning the preservation of exactness by certain integral genera.
Bibliography: 19 titles.
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