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Scalar-vector-tensor decomposition — In cosmological perturbation theory, the scalar vector tensor decomposition is a decomposition of the most general linearized s of the Friedmann Robertson Walker metric into components according to their transformations under spatial rotations.… … Wikipedia
Earnshaw's theorem — states that a collection of point charges cannot be maintained in a stable stationary equilibrium configuration solely by the electrostatic interaction of the charges. This was first proven by Samuel Earnshaw in 1842. It is usually referenced to… … Wikipedia
Nambu mechanics — In mathematics, Nambu dynamics is a generalization of Hamiltonian mechanics involving multiple Hamiltonians. Recall that Hamiltonian mechanics is based upon the flows generated by a smooth Hamiltonian over a symplectic manifold. The flows are… … Wikipedia
S-wave — can also refer to the lowest energy electronic wavefunction in atomic physics; see atomic orbital. A type of seismic wave, the S wave, secondary wave, or shear wave, sometimes called an elastic S wave, is one of the two main types of elastic body … Wikipedia
Electric field integral equation — The electric field integral equation is a relationship that allows one to calculate the electric field intensity E generated by an electric current distribution J .DerivationWe consider all quantities in the frequency domain, and so assume a time … Wikipedia
Toroidale-Poloidale Zerlegung — In diesem Diagramm wird die poloidale Richtung (θ) in rot angezeigt. Die toroidale Richtung (ζ oder ϕ) ist blau dargestellt. Die Toroidale Poloidale Zerlegung unterteilt ein Magnetfeld, z. B. das Erdmagnetfeld, in zwei Anteile, die jeweils… … Deutsch Wikipedia
