کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4583680 1630450 2016 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Graded polynomial identities for matrices with the transpose involution
ترجمه فارسی عنوان
هویت چندجملهای درجه بندی شده برای ماتریس با تحول انتقال
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات اعداد جبر و تئوری
چکیده انگلیسی

Let G be a group of order k  . We consider the algebra Mk(C)Mk(C) of k by k matrices over the complex numbers and view it as a crossed product with respect to G by embedding G   in the symmetric group SkSk via the regular representation and embedding SkSk in Mk(C)Mk(C) in the usual way. This induces a natural G  -grading on Mk(C)Mk(C) which we call a crossed-product grading. We study the graded ⁎-identities for Mk(C)Mk(C) equipped with such a crossed-product grading and the transpose involution. To each multilinear monomial in the free graded algebra with involution we associate a directed labeled graph. Use of these graphs allows us to produce a set of generators for the (T,⁎)(T,⁎)-ideal of identities. It also leads to new proofs of the results of Kostant and Rowen on the standard identities satisfied by skew matrices. Finally we determine an asymptotic formula for the ⁎-graded codimension of Mk(C)Mk(C).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Algebra - Volume 464, 15 October 2016, Pages 175–197
نویسندگان
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