projection rule

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• Born rule — The Born rule (also called the Born law, Born s rule, or Born s law) is a law of quantum mechanics which gives the probability that a measurement on a quantum system will yield a given result.It is named after its originator, the physicist Max… …   Wikipedia

• Fischer projection — The Fischer projection, devised by Hermann Emil Fischer in 1891,cite book|title=Organic Chemistry|author=John McMurry|year=2008|edition=7th edition|publisher=Brooks/Cole Thomson Learning, Inc.|pages=975] is a two dimensional representation of a… …   Wikipedia

• Righthand head rule — In generative morphology, the righthand head rule is a of grammar that specifies that the rightmost morpheme in a morphological structure is always the head. What this means is that it is the righthand element that provides the primary syntactic… …   Wikipedia

• Selection rule — In physics and chemistry, especially in the context of quantum mechanics, a selection rule is a condition constraining the physical properties of the initial system and the final system that is necessary for a process to occur with a nonzero… …   Wikipedia

• Trace monoid — In mathematics and computer science, a trace is a set of strings, wherein certain letters in the string are allowed to commute, but others are not. It generalizes the concept of a string, by not forcing the letters to always be in a fixed order,… …   Wikipedia

• Bell state — The Bell states are a concept in quantum information science and represent the simplest possible examples of entanglement. They are named after John S. Bell, as they are the subject of his famous Bell inequality. A Bell pair is a pair of qubits… …   Wikipedia

• Geometric algebra — In mathematical physics, a geometric algebra is a multilinear algebra described technically as a Clifford algebra over a real vector space equipped with a non degenerate quadratic form. Informally, a geometric algebra is a Clifford algebra that… …   Wikipedia

• Comparison of vector algebra and geometric algebra — Vector algebra and geometric algebra are alternative approaches to providing additional algebraic structures on vector spaces, with geometric interpretations, particularly vector fields in multivariable calculus and applications in mathematical… …   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

• Africa — For other uses, see Africa (disambiguation). Africa Africa Area …   Wikipedia

• South Asian arts — Literary, performing, and visual arts of India, Pakistan, Bangladesh, and Sri Lanka. Myths of the popular gods, Vishnu and Shiva, in the Puranas (ancient tales) and the Mahabharata and Ramayana epics, supply material for representational and… …   Universalium