Cobordism of involutions revisited, revisited
نویسندگان
چکیده
Boardman’s work [3,4] on Conner and Floyd’s five-halves conjecture looks remarkably contemporary in retrospect. This note reexamines some of that work from a perspective proposed recently by Greenlees and Kriz. 1. Unoriented involutions A large part of Boardman’s argument can be summarized as a commutative diagram 0 // N geo Z/2Z∗ // ⊕i≥0Ni(BO∗−i) ∂ //
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