 Stiefel–Whitney class

ID: stiefel-whitney-class

The Stiefel–Whitney classes of a real rank-

d

w_{i} (E) \in H^{i} (X; F_{2}), 0 \leq i \leq d .

Their total class is

w (E) = 1 + w_{1} (E) + \dots + w_{d} (E)

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