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arxiv: 1004.3829 · v1 · submitted 2010-04-22 · 🧮 math.KT

A negative answer to a question of Bass

G. Corti\~nas , C. Haesemeyer , Mark E. Walker , C. Weibel This is my paper
classification 🧮 math.KT
keywords bassquestionansweranswersarxivcompanionexamplefield
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In this companion paper to arXiv:0802.1928 we provide an example of an isolated surface singularity $R$ over a number field such that $K_0(R) = K_0(R[t])$ but $K_0(R) \neq K_0(R[t_1,t_2])$. This answers, negatively, a question of Bass.

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