theory in two dimensions

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• Two-factor models of personality — The Two Factor Model of Personality is a widely used psychological factor analysis measurement of personality, behavior and temperament. It most often consists of a matrix measuring the factor of introversion and extroversion with some form of… …   Wikipedia

• Theory of conjoint measurement — The theory of conjoint measurement (also known as conjoint measurement or additive conjoint measurement) is a general, formal theory of continuous quantity. It was independently discovered by the French economist Gerard Debreu (1960) and by the… …   Wikipedia

• Potential theory — may be defined as the study of harmonic functions. Definition and comments The term potential theory arises from the fact that, in 19th century physics, the fundamental forces of nature were believed to be derived from potentials which satisfied… …   Wikipedia

• Non-critical string theory — The non critical string theory describes the relativistic string without enforcing the critical dimension. Although this allows the construction of a string theory in 4 spacetime dimensions, such a theory usually does not describe a Lorentz… …   Wikipedia

• Theory of everything — A theory of everything (TOE) is a putative theory of theoretical physics that fully explains and links together all known physical phenomena. Initially, the term was used with an ironic connotation to refer to various overgeneralized theories.… …   Wikipedia

• Theory of Forms — Plato s Theory of Forms [The name of this aspect of Plato s thought is not modern and has not been extracted from certain dialogues by modern scholars. The term was used at least as early as Diogenes Laertius, who called it (Plato s) Theory of… …   Wikipedia

• Theory of incomplete measurements — The Theory of Incomplete Measurements (TIM) is an attempt to unify Quantum Mechanics and General Relativity by focusing on physical measurement processes. In that theory, general relativity is a continuous approximation of discrete measurements,… …   Wikipedia

• String theory — This article is about the branch of theoretical physics. For other uses, see String theory (disambiguation). String theory …   Wikipedia

• Superstring theory — is an attempt to explain all of the particles and fundamental forces of nature in one theory by modelling them as vibrations of tiny supersymmetric strings. It is considered one of the most promising candidate theories of quantum gravity.… …   Wikipedia

• M-theory — For a generally accessible and less technical introduction to the topic, see Introduction to M theory. String theory …   Wikipedia

• Topological string theory — In theoretical physics, topological string theory is a simplified version of string theory. The operators in topological string theory represent the algebra of operators in the full string theory that preserve a certain amount of supersymmetry.… …   Wikipedia