# How looks the “land of Tamagawa numbers”?

Jonah Sinick's question here, other interesting ideas he mentioned, and Franz Lemmermeyer's remark make one think at Bloch and Kato's drawing + question. What's known or guessed about that "land" by now and how would a new map look like?

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Is this a question or a riddle? –  Victor Protsak May 19 '10 at 18:58
Is that a question or a 'Catch (2pi*i)'? :)) –  Thomas Riepe May 19 '10 at 19:10