کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4647585 1632426 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A weight statistic and partial order on products of mm-cycles
ترجمه فارسی عنوان
مقیاس وزن و سفارش جزئی در محصولات میلیمتر چرخه
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات گسسته و ترکیبات
چکیده انگلیسی

R. S. Deodhar and M. K. Srinivasan defined a weight statistic on the set of involutions in the symmetric group and proved several results about the properties of this weight. These results include a recursion for a weight generating function, that the weight provides a grading for the set of fixed-point free involutions under a partial order related to the Bruhat partial order, and that this graded poset is EL-shellable and its order complex triangulates a ball. We extend the definition of weight to products of disjoint mm-cycles in the symmetric group, and we generalize all of the results of Deodhar and Srinivasan just mentioned to the case of any m≥2m≥2.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Discrete Mathematics - Volumes 315–316, 6 February 2014, Pages 9–17
نویسندگان
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