Self cup products and the theta characteristic torsor
Author(s)Poonen, Bjorn; Rains, Eric
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We give a general formula relating self cup products in cohomology to connecting maps in nonabelian cohomology, and apply it to obtain a formula for the self cup product associated to the Weil pairing.
DepartmentMassachusetts Institute of Technology. Department of Mathematics
Mathematical Research Letters
Poonen, Bjorn, and Eric Rains. “Self cup products and the theta characteristic torsor.” Mathematical Research Letters 18, no. 6 (2011): 1305-1318.
Author's final manuscript