Invitation to higher local fields, Part I, section 4: Cohomological symbol for henselian discrete valuation fields of mixed characteristic
Jinya Nakamura
Abstract
This is a sketch of main steps of the proof of Bloch--Kato's theorem which states that the norm residue homomorphism Kq(K)/m Hq(K, Z/m(q)) is an isomorphism for a henselian discrete valuation field K of characteristic 0 with residue field of positive characteristic.
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