Thursday 10 August 2023

Parts and Whole / 1 September 2013

 

Parts and Whole / 1 September 2013

TANAKA Akio

I was ever simply thinking that the parts gathers and the whole is completed. But the situation seemed not to be so simple, I recently realised. Its beginning started with a theorem of arithmetic geometry.
Theorem
When i : X–>Y,  j : Y–>Z is regular closed immersion of their codimension c, d, the next is set up.
(jOi)* = j*Oi*: CHr(Z) –>CHr-c-d(X).

Tokyo
1 September 2013
hillseversunlit

References added, 9 September 2014

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