|タイトル||Pseudo-null Modules in Iwasawa Theory|
|講演者||Ralph Greenberg 氏(University of Washington)|
14 棟 2 階 201 号室
|内容||One aspect of Iwasawa theory concerns the characteristic ideal of a naturally occurring Iwasawa module, giving a relationship between that ideal and a $p$-adic $L$-function.
However, sometimes an interesting Iwasawa module turns out to be pseudo-null, or at least conjecturally pseudo-null. The characteristic ideal of a pseudo-null module is trivial even though the module itself may be nontrivial.
Is there something that one can say which relates the structure of such a pseudo-null Iwasawa module to $p$-adic $L$-functions?
This talk will describe one very special situation in which such a relationship can be established.