On ranks of the stable derivation algebra and Deligne's problem
On ranks of the stable derivation algebra and Deligne's problem
1. Introduction.Among the outer Galois where Out denotes the outer derivation algeb- representations attached to algebraic varieties, ra of the free Lie algebra 2 of rank two [5, 8, the one attached to X-pl\ {0,1, oo} is most and 9].We call 0 the Lie algebraization of x.fundamental.In this article, we …