کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4657367 1343733 2007 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Relaxed two-coloring of cubic graphs
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات گسسته و ترکیبات
پیش نمایش صفحه اول مقاله
Relaxed two-coloring of cubic graphs
چکیده انگلیسی

We show that any graph of maximum degree at most 3 has a two-coloring such that one color-class is an independent set, while the other color-class induces monochromatic components of order at most 750. On the other hand, for any constant C, we exhibit a 4-regular graph such that the deletion of any independent set leaves at least one component of order greater than C. Similar results are obtained for coloring graphs of given maximum degree with k+ℓ colors such that k parts form an independent set and ℓ parts span components of order bounded by a constant. A lot of interesting questions remain open.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Combinatorial Theory, Series B - Volume 97, Issue 4, July 2007, Pages 652-668