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Clique Number
In the mathematics, mathematical area of graph theory, a clique ( or ) is a subset of vertices of an undirected graph such that every two distinct vertices in the clique are Adjacent (graph theory), adjacent. That is, a clique of a graph G is an induced subgraph of G that is complete graph, complete. Cliques are one of the basic concepts of graph theory and are used in many other mathematical problems and constructions on graphs. Cliques have also been studied in computer science: the task of finding whether there is a clique of a given size in a Graph (discrete mathematics), graph (the clique problem) is NP-complete, but despite this hardness result, many algorithms for finding cliques have been studied. Although the study of complete graph, complete subgraphs goes back at least to the graph-theoretic reformulation of Ramsey theory by , the term ''clique'' comes from , who used complete subgraphs in social networks to model cliques of people; that is, groups of people all of who ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VR Complex
VR may refer to: Arts, entertainment and education * Virtual reality, a computer technology that simulates an environment with which a user may interact as if it was actually there * ''Virtua Racing'', a 1992 arcade racing game by Sega * Vocational rehabilitation * Spectre VR, an enhanced version of ''Spectre (1991 video game), Spectre'' * ''VR.5'', an American science fiction television series in 1995 * ''VR Troopers'', an American action television show from 1994 to 1996 Businesses * VR (company), a Finnish railway company, formerly known as Valtion rautatiet ''(State Railways)'' * Valdosta Railway, in the US state of Georgia * Victorian Railways, in the Australian state of Victoria * Viktor & Rolf, an Amsterdam-based fashion house * German Cooperative Financial Group (''Volksbanken und Raiffeisenbanken'') * Cape Verde Airlines (IATA airline code) Government and military * Vetenskapsrådet, the Swedish Research Council * Volunteer Reserves (United Kingdom) * Fleet Logistics S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
