contraction operation

См. также в других словарях:

• Contraction — Con*trac tion, n. [L. contractio: cf. F. contraction.] 1. The act or process of contracting, shortening, or shrinking; the state of being contracted; as, contraction of the heart, of the pupil of the eye, or of a tendon; the contraction produced… …   The Collaborative International Dictionary of English

• Operation Pluto — was also the codename for the Bay of Pigs Invasion. PLUTO redirects here. For other uses, see Pluto (disambiguation). Pipeline Under The Ocean redirects here. For the 2005 rock album, see Pipeline Under the Ocean (album) …   Wikipedia

• Operation PLUTO — Opération PLUTO Une coupe du tuyau avec des couches succesivement enroulées Opération PLUTO (Pipe Lines Under The Ocean) était une opération de la Seconde Guerre mondiale menée par les scientifiques britanniques, les sociétés pétrolières, et les… …   Wikipédia en Français

• Opération PLUTO — Une coupe du tuyau avec des couches succesivement enroulées Opération PLUTO (Pipe Lines Under The Ocean) était une opération britannique de la Seconde Guerre mondiale pour construire un oléoduc sous la Manche entre le Royaume Uni et la France… …   Wikipédia en Français

• Tensor contraction — In multilinear algebra, a tensor contraction is an operation on one or more tensors that arises from the natural pairing of a finite dimensional vector space and its dual. In components, it is expressed as a sum of products of scalar components… …   Wikipedia

• Edge contraction — In graph theory, an edge contraction is an operation which removes an edge from a graph while simultaneously merging together the two vertices it previously connected. Edge contraction is a fundamental operation in the theory of graph minors.… …   Wikipedia

• Poisson bracket — In mathematics and classical mechanics, the Poisson bracket is an important operator in Hamiltonian mechanics, playing a central role in the definition of the time evolution of a dynamical system in the Hamiltonian formulation. In a more general… …   Wikipedia

• Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… …   Universalium

• Tenseur (mathématiques) —  Pour l’article homonyme, voir Tenseur.  Les tenseurs sont des objets mathématiques issus de l algèbre multilinéaire permettant de généraliser les scalaires et les vecteurs. On les rencontre notamment en analyse vectorielle et en… …   Wikipédia en Français

• Belief revision — is the process of changing beliefs to take into account a new piece of information. The logical formalization of belief revision is researched in philosophy, in databases, and in artificial intelligence for the design of rational agents.What… …   Wikipedia

• cardiovascular disease — Introduction       any of the diseases, whether congenital or acquired, of the heart and blood vessels (blood vessel). Among the most important are atherosclerosis, rheumatic heart disease, and vascular inflammation. Cardiovascular diseases are a …   Universalium