RB
Raoul Bott
Raoul Bott was a Hungarian-American mathematician known for numerous foundational contributions to geometry in its broad sense. He is best known for his Bott periodicity theorem, the Morse–Bott functions which he used in this context, and the Borel–Bott–Weil theorem.
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Books

Differential forms in algebraic topology
2011
ISBN 9781441928153