Timeline for Explain the relation between $K_0$ and morphisms of Chow motives
Current License: CC BY-SA 2.5
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Jan 6, 2011 at 13:05 | vote | accept | Mikhail Bondarko | ||
Jan 3, 2011 at 23:49 | answer | added | user10849 | timeline score: 4 | |
Jan 3, 2011 at 23:47 | comment | added | AFK | One very conceptual explanation is that both $X \mapsto CH^*(X)$ and $X \mapsto K_0(X)[\beta^{\pm 1}]$ are oriented cohomology theories corresponding to the additive and multiplicative formal group law respectively. But over a field of characterstic 0, every formal group law is isomorphic to the additive one because we can define its exponential. This is the Chern character: a very fancy exponential. | |
Jan 3, 2011 at 22:21 | history | edited | Mikhail Bondarko | CC BY-SA 2.5 |
added 300 characters in body
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Jan 3, 2011 at 21:24 | history | asked | Mikhail Bondarko | CC BY-SA 2.5 |