کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4647881 1342381 2013 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reduced criteria for degree sequences
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات گسسته و ترکیبات
پیش نمایش صفحه اول مقاله
Reduced criteria for degree sequences
چکیده انگلیسی

For many types of graphs, criteria have been discovered that give necessary and sufficient conditions for an integer sequence to be the degree sequence of such a graph. These criteria tend to take the form of a set of inequalities, and in the case of the Erdős–Gallai criterion (for simple undirected graphs) and the Gale–Ryser criterion (for bipartite graphs), it has been shown that the number of inequalities that must be checked can be reduced significantly. We show that similar reductions hold for the corresponding criteria for many other types of graphs, including bipartite rr-multigraphs, bipartite graphs with structural edges, directed graphs, rr-multigraphs, and tournaments. We also prove a reduction for imbalance sequences.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Discrete Mathematics - Volume 313, Issue 4, 28 February 2013, Pages 550–562
نویسندگان
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