reduction in rank
111Divide-and-conquer eigenvalue algorithm — Divide and conquer eigenvalue algorithms are a class of eigenvalue algorithms for Hermitian or real symmetric matrices that have recently (circa 1990s) become competitive in terms of stability and efficiency with more traditional algorithms such… …
112Propositional formula — In propositional logic, a propositional formula is a type of syntactic formula which is well formed and has a truth value. If the values of all variables in a propositional formula are given, it determines a unique truth value. A propositional… …
113Cartan's equivalence method — In mathematics, Cartan s equivalence method is a technique in differential geometry for determining whether two geometrical structures are the same up to a diffeomorphism. For example, if M and N are two Riemannian manifolds with metrics g and h …
114Gerald Ford — This article is about the U.S. President. For other uses, see Gerald Ford (disambiguation). Gerald Ford 38th President of the United States …
115United States Senate career of Barack Obama — Infobox Senator name = Barack Obama !Barack Obama jr/sr = Junior Senator state = Illinois term start = January 4 2005 alongside = Richard Durbin preceded = Peter Fitzgerald order2 = Chairman of the Senate Foreign Relations Subcommittee on… …
116Spain — /spayn/, n. a kingdom in SW Europe. Including the Balearic and Canary islands, 39,244,195; 194,988 sq. mi. (505,019 sq. km). Cap.: Madrid. Spanish, España. * * * Spain Introduction Spain Background: Spain s powerful world empire of the 16th and… …
117arts, East Asian — Introduction music and visual and performing arts of China, Korea, and Japan. The literatures of these countries are covered in the articles Chinese literature, Korean literature, and Japanese literature. Some studies of East Asia… …
118Wiltshire Police — Logo of the Wiltshire Police. Motto Primus et Optimus The First and the B …
119Go (game) — This article is about Go, the board game. For other uses, see Go (disambiguation). Goe redirects here. For other uses, see GOE (disambiguation). Go Go is played on a grid of black lines (usually 19×19). The playing pieces, called stones, are… …
120Étale cohomology — In mathematics, the étale cohomology groups of an algebraic variety or scheme are algebraic analogues of the usual cohomology groups with finite coefficients of a topological space, introduced by Grothendieck in order to prove the Weil… …
