Theory articles on Wikipedia
theory — Ergodic theory — Field theory — Galois theory — Game theory — Graph theory — Group theory — Hodge theory — Homology theory — Homotopy theory
May 18th 2017

Set theory
Set theory is a branch of mathematical logic that studies sets, which informally are collections of objects. Although any type of object can be collected
Apr 8th 2017

Information theory
Information theory studies the quantification, storage, and communication of information. It was originally proposed by Claude E. Shannon in 1948 to find
May 20th 2017

Theory X and Theory Y
Theory X and Theory Y are theories of human motivation and management. They were created and developed by Douglas McGregor at the MIT Sloan School of Management
May 23rd 2017

Critical theory
Critical theory (or "social critical theory") describes the neo-Marxist philosophy of the Frankfurt School, which was developed in Germany in the 1930s
May 23rd 2017

String theory
In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called
May 23rd 2017

Systems theory
Systems theory or systems science is the interdisciplinary study of systems. A system is an entity with interrelated and interdependent parts; it is defined
May 24th 2017

Theory of computation
into three major branches: automata theory and language, computability theory, and computational complexity theory, which are linked by the question: "What
Mar 8th 2017

Theory of everything
A theory of everything (ToE), final theory, ultimate theory, or master theory is a hypothetical single, all-encompassing, coherent theoretical framework
May 17th 2017

Game theory
Game theory is "the study of mathematical models of conflict and cooperation between intelligent rational decision-makers." Game theory is mainly used
May 14th 2017

Scientific theory
For a broader coverage related to this topic, see theory. A scientific theory is an explanation of some aspect of the natural world that can, in accordance
May 3rd 2017

Superstring theory
'Superstring theory' is a shorthand for supersymmetric string theory because unlike bosonic string theory, it is the version of string theory that accounts
Apr 9th 2017

Group theory
In mathematics and abstract algebra, group theory studies the algebraic structures known as groups. The concept of a group is central to abstract algebra:
Feb 4th 2017

M-theory is a theory in physics that unifies all consistent versions of superstring theory. The existence of such a theory was first conjectured by Edward
May 20th 2017

Number theory
Number theory or, in older usage, arithmetic is a branch of pure mathematics devoted primarily to the study of the integers. It is sometimes called "The
Apr 3rd 2017

Model theory
mathematics, model theory is the study of classes of mathematical structures (e.g. groups, fields, graphs, universes of set theory) from the perspective
Apr 16th 2017

Decision theory
Decision theory (or the theory of choice) is the study of the reasoning underlying an agent's choices. Decision theory can be broken into two branches:
May 9th 2017

International relations theory
International relations theory is the study of international relations (IR) from a theoretical perspective. It attempts to provide a conceptual framework
May 11th 2017

Graph theory
In mathematics, graph theory is the study of graphs, which are mathematical structures used to model pairwise relations between objects. A graph in this
May 13th 2017

Gauge theory
In physics, a gauge theory is a type of field theory in which the Lagrangian is invariant under a continuous group of local transformations. An invariant
May 15th 2017

Conspiracy theory
A conspiracy theory is an explanation of an event or situation that invokes a conspiracy without warrant, generally one involving an illegal or harmful
May 21st 2017

Theory of relativity
The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity. Special relativity
May 20th 2017

Quantum field theory
In theoretical physics, quantum field theory (QFT) is the theoretical framework for constructing quantum mechanical models of subatomic particles in particle
May 17th 2017

Grounded theory
Grounded theory (GT) is a systematic methodology in the social sciences involving the construction of theory through the analysis of data. Grounded theory is
Apr 18th 2017

The Big Bang Theory
The Big Bang Theory is an American television sitcom created by Chuck Lorre and Bill Prady, both of whom serve as executive producers on the series, along
May 22nd 2017

Probability theory
Probability theory is the branch of mathematics concerned with probability. Although there are several different interpretations of probability, probability
May 19th 2017

Communication theory
Communication theory is a field of information theory and mathematics that studies the technical process of information and the process of human communication
Jan 16th 2017

Type theory
theory is any of a class of formal systems, some of which can serve as alternatives to set theory as a foundation for all mathematics. In type theory
May 1st 2017

For the hip hop group, see K-TheoryK Theory. In mathematics, K-theory is, roughly speaking, the study of a ring generated by vector bundles over a topological
May 1st 2017

Naive set theory
Naive set theory is one of several theories of sets used in the discussion of the foundations of mathematics. Unlike axiomatic set theories, which are
Apr 26th 2017

Computability theory
Computability. Computability theory, also called recursion theory, is a branch of mathematical logic, of computer science, and of the theory of computation that
Jan 5th 2017

Twistor theory
physics, twistor theory is a theory proposed by Penrose Roger Penrose in 1967, as a possible path to a theory of quantum gravity. In twistor theory, the Penrose transform
May 15th 2017

Organizational theory
Organizational theory consists of approaches to organizational analysis. Theories of organizations include rational system perspective, division of labor
Apr 10th 2017

Emission theory
emission theory of relativity. For the emission theory of vision, see Emission theory (vision). Emission theory, also called emitter theory or ballistic
Jan 5th 2017

Psychoanalytic theory
Psychoanalytic theory is the theory of personality organization and the dynamics of personality development that guides psychoanalysis, a clinical method
Mar 22nd 2017

Evolution as fact and theory
scientists and philosophers of science have described evolution as fact and theory, a phrase which was used as the title of an article by paleontologist Stephen
Apr 22nd 2017

Dynamical systems theory
Dynamical systems theory is an area of mathematics used to describe the behavior of the complex dynamical systems, usually by employing differential equations
May 13th 2017

F-theory is a branch of string theory developed by Vafa Cumrun Vafa. The new vacua described by F-theory were discovered by Vafa and allowed string theorists
Apr 3rd 2017

Queer theory
Queer theory is a field of post-structuralist critical theory that emerged in the early 1990s out of the fields of queer studies and women's studies.
May 20th 2017

Intuitionistic type theory
Intuitionistic type theory (also known as constructive type theory, or Martin-Lof type theory) is a type theory and an alternative foundation of mathematics
Jan 31st 2017

Type II string theory
physics, type II string theory is a unified term that includes both type IIA strings and type IIB strings theories. Type II string theory accounts for two of
Apr 5th 2017

Theory (mathematical logic)
In mathematical logic, a theory (also called a formal theory) is a set of sentences in a formal language. Usually a deductive system is understood from
May 16th 2017

Morse–Kelley set theory
mathematics, MorseKelley set theory (MK), KelleyMorse set theory (KM), MorseTarski set theory (MT), QuineMorse set theory (QM) or the system of Quine
Mar 15th 2017

Valence bond theory
In chemistry, valence bond (VB) theory is one of two basic theories, along with molecular orbital (MO) theory, that were developed to use the methods
May 18th 2017

Quantum theory
levels Old quantum theory (1900–25, prior to modern quantum mechanics) Quantum field theory, a generic type of relativistic quantum theory, which includes:
Feb 28th 2017

Theory of mind
Theory of mind (often abbreviated ToM) is the ability to attribute mental states—beliefs, intents, desires, pretending, knowledge, etc.—to oneself and
Apr 19th 2017

Divine command theory
Divine command theory (also known as theological voluntarism) is a meta-ethical theory which proposes that an action's status as morally good is equivalent
May 16th 2017

Representation theory
Representation theory is a branch of mathematics that studies abstract algebraic structures by representing their elements as linear transformations of
Apr 23rd 2017

Fringe theory
Wikipedia:Fringe theories. A fringe theory is an idea or viewpoint which differs from the accepted scholarship in its field. Fringe theories include the models
Mar 6th 2017

Labor theory of value
The labor theory of value (LTV) is a theory of value that argues that the economic value of a good or service is determined by the total amount of socially
May 10th 2017

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