The paper constructs a nonzero mod-3 K_2 class on a ramified regular local ring that dies in the fraction field, disproving finite-coefficient Gersten injectivity in this setting.
Journal of Algebra , volume =
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Finite-coefficient Gersten injectivity fails in ramified mixed characteristic
The paper constructs a nonzero mod-3 K_2 class on a ramified regular local ring that dies in the fraction field, disproving finite-coefficient Gersten injectivity in this setting.