منابع مشابه
Disjoint odd integer subsets having a constant odd sum
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We put the final piece into a puzzle first introduced by Bollobás, Erdős and Szemerédi in 1975. For arbitrary positive integers n and r we determine the largest integer ∆ = ∆(r, n), for which any r-partite graph with partite sets of size n and of maximum degree less than ∆ has an independent transversal. This value was known for all even r. Here we determine the value for odd r and find that ∆(...
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ژورنال
عنوان ژورنال: Physical Review
سال: 1957
ISSN: 0031-899X
DOI: 10.1103/physrev.105.1928