منابع مشابه
Roman Domination
In his article published in 1999, Ian Stewart discussed a strategy of Emperor Constantine for defending the Roman Empire. Motivated by this article, Cockayne et al.(2004) introduced the notion of Roman domination in graphs. Let G = (V,E) be a graph. A Roman dominating function of G is a function f : V → {0, 1, 2} such that every vertex v for which f(v) = 0 has a neighbor u with f(u) = 2. The we...
متن کاملRoman Medicine
Librarian of the National Library ofWales, and used to illustrate the lecture at Cardiff. The initial article is a scholarly account of Thomas Baskerville, Elizabethan apothecary of Exeter, by Margery Rowe and G. E. Trease. To a Welsh reviewer, another pleasing feature of the Transactions is that it has been printed by J. D. Lewis and Sons Ltd., Gomerian Press, Llandysul. They have already done...
متن کاملThresholds for Roman domination
Define a Roman dominating function (RDF) of a graph G to be a function f : V (G) → {0, 1, 2} such that every u with f(u) = 0 has a neighbor v with f(v) = 2. The weight of f , w(f), is ∑ v∈V (G) f(v). The Roman domination number of G, γR(G), is the minimum weight of an RDF of G. It is easy to see that γ(G) ≤ γR(G) ≤ 2γ(G), where γ(G) is the domination number of G. In this paper, we determine pro...
متن کاملRoman Archaeology Group Inc
With the apparent return of the historical epic movie – Braveheart, Gladiator, The Passion of Christ, Troy, King Arthur and several films of Alexander and Boudicca (Boadicea for those over 40), attention is again focused on the authenticity of the genre. Was it really like that? Is the costume and architecture true to life? And, most commonly asked by those who enjoyed Gladiator, was the grippi...
متن کاملSome Roman medicine.
SOME ROMAN MEDICINE IT HAS long been recognized that in the Roman Empire great advances were made in medical knowledge, and that the best organized medical system in the ancient world was that of the Roman armed forces." Recent work has provided interesting examples of Roman medicine as used by the army. For some time it has been known that some of the medicines and medical preparations prescri...
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ژورنال
عنوان ژورنال: Voix et Images
سال: 2015
ISSN: 0318-9201,1705-933X
DOI: 10.7202/1033964ar