假设E是由方程y^2-y=x^3--x定义的椭圆曲线,Ez是E的Neron模型.本文证明了Steinberg符号{x,y^2)^2是K2(Ez)中的非扭元.
model. In of g2(Ez) Let E be the elliptic curve defined by y2 - y = x3 - x and Ez its Neron this paper, it is proved the Steinberg symbol {x, y}2 is a non-trivial element ⊙z Q.