类不变量:le cas semi-stable
Invariants de classes : le cas semi-stable
摘要:
我们在这里定义一个类似的,对于一个半稳定群方案,其类属纤维是M的一个阿贝尔簇。J. Taylor的类不变同态(定义在交换格式上),给出了它的几何描述,推广了Taylor,Srivastav,Agboola和Pappas关于半稳定椭圆曲线情形下这类同态的核的一个结果.
英文摘要:
We define here an analogue, for a semi-stable group scheme whose generic fiber is an abelian variety, of M. J. Taylor's class-invariant homomorphism (defined for abelian schemes), and we give a geometric description of it. Then we extend a result of Taylor, Srivastav, Agboola and Pappas concerning the kernel of this homomorphism in the case of a semi-stable elliptic curve.
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