High Quality Content by WIKIPEDIA articles! In the theory of relativity, a four-vector or 4-vector is a vector in a four-dimensional real vector space, called Minkowski space. It differs from a Euclidean vector in that four-vectors transform by the Lorentz transformations. The usage of the four-vector name tacitly assumes that its components refer to a standard basis. The components transform between these bases as the space and time coordinate differences, (c?t, ?x, ?y, ?z) under spatial translations, spatial rotations, spatial and time inversions and boosts (a change by a constant velocity to another inertial reference frame). The set of all such translations, rotations, inversions and boosts (called Poincare transformations) forms the Poincare group. The set of rotations, inversions and boosts (Lorentz transformations, described by 4?4 matrices) forms the Lorentz group. Данное издание представляет собой компиляцию сведений, находящихся в свободном доступе в среде Интернет в целом,...

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