Thursday, August 19, 2021


Filed under: General — m759 @ 12:31 PM

"The subject of -theory takes its name from a 1957 construction of 
Alexander Grothendieck which appeared in the 
Grothendieck–Riemann–Roch theorem, his generalization of
Hirzebruch's theorem.[2] Let X  be a smooth algebraic variety.
To each vector bundle on , Grothendieck associates an invariant, its class .
The set of all classes on X  was called K(X from the German Klasse ."

— Wikipedia, Algebraic -theory

In memory of a mathematician who reportedly died on July 3rd, 2021 —

For a somewhat simpler K , see Aesthetic Distance.

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