کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6415865 1336152 2015 67 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An algebraic geometric model of an action of the face monoid associated to a Kac-Moody group on its building
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات اعداد جبر و تئوری
پیش نمایش صفحه اول مقاله
An algebraic geometric model of an action of the face monoid associated to a Kac-Moody group on its building
چکیده انگلیسی

The face monoid Gˆ described in [11] acts on the integrable irreducible highest weight modules of a symmetrizable Kac-Moody algebra. It has similar structural properties as a reductive algebraic monoid whose unit group is a symmetrizable Kac-Moody group G. We found in [15] two natural extensions of the action of the Kac-Moody group G on its building Ω to actions of the face monoid Gˆ on the building Ω. Now we give an algebraic geometric model of one of these actions of the face monoid Gˆ on Ω, where the building Ω is obtained as a part of the F-valued points of the spectrum of all homogeneous prime ideals of the Cartan algebra CA of the Kac-Moody group G. We describe the spectrum of all homogeneous prime ideals of the Cartan algebra CA and determine its F-valued points.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pure and Applied Algebra - Volume 219, Issue 2, February 2015, Pages 331-397
نویسندگان
,