کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4588282 1334179 2008 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hilbert polynomials for the extension functor
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات اعداد جبر و تئوری
پیش نمایش صفحه اول مقاله
Hilbert polynomials for the extension functor
چکیده انگلیسی

Let R be a local ring, I⊆R an ideal, and M and N finite R-modules. In this paper we provide a number of results concerning the degree of the polynomial giving the lengths of the modules , when such a polynomial exists. Included among these results are a characterization of when this degree equals the Krull dimension of R, a characterization of when the degree of the polynomial associated to the first non-vanishing Ext under consideration equals the grade of I on M, and calculation of the degree of Hilbert polynomials associated to certain iterated expressions involving the extension functor.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Algebra - Volume 319, Issue 6, 15 March 2008, Pages 2319-2336