An exact sequence for submersions

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An Exact Sequence for Submersions

As our second example we consider the case where TT is a differentiable submersion (in the usual sense) of codimension 1. Thus we assume that X, B are C°°-manifolds of dimensions n + 1 and n, respectively, and that TT is a regular differentiate map. Such a submersion is orientable if the induced line element field on X is orientable, and w will be called simple if w~(b) is connected for all bÇEB.

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ژورنال

عنوان ژورنال: Bulletin of the American Mathematical Society

سال: 1968

ISSN: 0002-9904

DOI: 10.1090/s0002-9904-1968-11899-3