equation of fourth order

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• Dirac equation — Quantum field theory (Feynman diagram) …   Wikipedia

• Hasegawa-Mima equation — The Hasegawa Mima equation, named after Akira Hasegawa and Kunioki Mima, is an equation that describes a certain regime of plasma, where the time scales are very fast, and the distance scale in the direction of the magnetic field is long. In… …   Wikipedia

• Euler-Bernoulli beam equation — Euler Bernoulli beam theory, or just beam theory, is a simplification of the linear theory of elasticity which provides a means of calculating the load carrying and deflection characteristics of beams. It was first enunciated circa 1750, but was… …   Wikipedia

• Biharmonic equation — In mathematics, the biharmonic equation is a fourth order partial differential equation which arises in areas of continuum mechanics, including linear elasticity theory and the solution of Stokes flows. It is written as : abla^4varphi=0where… …   Wikipedia

• Euler's equation of degree four — is a mathematical problem proposed by Leonhard Euler in 1772. [ [http://www.upi.com/NewsTrack/Science/2008/03/19/eulers equation of degree four solved/8804/ Euler s equation of degree four solved UPI.com ] ] The problem, which deals with number… …   Wikipedia

• Wave equation — Not to be confused with Wave function. The wave equation is an important second order linear partial differential equation for the description of waves – as they occur in physics – such as sound waves, light waves and water waves. It arises in… …   Wikipedia

• Quadratic equation — This article is about quadratic equations and solutions. For more general information about quadratic functions, see Quadratic function. For more information about quadratic polynomials, see Quadratic polynomial. In mathematics, a quadratic… …   Wikipedia

• Theoretical and experimental justification for the Schrödinger equation — The theoretical and experimental justification for the Schrödinger equation motivates the discovery of the Schrödinger equation, the equation that describes the dynamics of nonrelativistic particles. The motivation uses photons, which are… …   Wikipedia

• Schrödinger equation — For a more general introduction to the topic, please see Introduction to quantum mechanics. Quantum mechanics …   Wikipedia

• Nonlinear Schrödinger equation — This page is about the equation iψt = −½ψxx + κ|ψ|2ψ. For the equation iψt = −½ψxx + V(x)ψ + κ|ψ|2ψ, used in Bose–Einstein condensate theory, see Gross–Pitaevskii equation. In theoretical physics, the nonlinear Schrödinger equation (NLS) is a… …   Wikipedia

• Jack Kirby's Fourth World — The Fourth World is the popular name given to a metaseries of interconnecting comic book titles written and drawn by Jack Kirby and published by DC Comics from 1970 to 1973. Originally intended to form a finite epic story, the books were canceled …   Wikipedia