منابع مشابه
20 Life Without Chiefs
Can humans exist without some people ruling and others being ruled? To look at the modern world, you wouldn’t think so. Democratic states may have done away with emperors and kings, but they have hardly dispensed with gross inequalities in wealth, rank, and power. However, humanity hasn’t always lived this way. For about 98 percent of our existence as a species (and for four million years befor...
متن کاملOn the 3-kings and 4-kings in multipartite tournaments
Koh and Tan gave a sufficient condition for a 3-partite tournament to have at least one 3-king in [K.M. Koh, B.P. Tan, Kings in multipartite tournaments, Discrete Math. 147 (1995) 171–183, Theorem 2]. In Theorem 1 of this paper, we extend this result to n-partite tournaments, where n 3. In [K.M. Koh, B.P. Tan, Number of 4-kings in bipartite tournaments with no 3-kings, Discrete Math. 154 (1996)...
متن کاملRainfall and Dragon-Kings
Previous studies have found broad distributions, resembling power laws for different measures of the size of rainfall events. We investigate the large-event tail of these distributions and find in one measure that tropical cyclones account for a large proportion of the very largest events outside the scaling regime, i.e., beyond the cutoff of the power law. Tropical cyclones are sufficiently ra...
متن کامل14 - Of Kings and Capitals
ALAN L. KOLATA Cities, and the larger political formations within which they are embedded, are dynamic congeries of political, economic, and social institutions that are shaped and reshaped by historical circumstance. This dynamism and mutability in the face of exogenou-s forces might suggest the impossibility of a coherent, general theory about the forms and forces of urban transformation of t...
متن کاملThe Complexity of Kings
A king in a directed graph is a node from which each node in the graph can be reached via paths of length at most two. There is a broad literature on tournaments (completely oriented digraphs), and it has been known for more than half a century that all tournaments have at least one king [Lan53]. Recently, kings have proven useful in theoretical computer science, in particular in the study of t...
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ژورنال
عنوان ژورنال: Articles
سال: 2017
ISSN: 1708-0401,1481-5974
DOI: 10.7202/1041490ar