Epsilon-Tensor
61Gravitational instanton — In mathematical physics and differential geometry, a gravitational instanton is a four dimensional complete Riemannian manifold satisfying the vacuum Einstein equations. They are so named because they are analogues in quantum theories of gravity… …
62Alternatives to general relativity — are physical theories that attempt to describe the phenomena of gravitation in competition to Einstein s theory of general relativity.There have been many different attempts at constructing an ideal theory of gravity. These attempts can be split… …
63Classical Hamiltonian quaternions — For the history of quaternions see:history of quaternions For a more general treatment of quaternions see:quaternions William Rowan Hamilton invented quaternions, a mathematical entity in 1843. This article describes Hamilton s original treatment …
64Альтернативные теории гравитации — Альтернативными теориями гравитации принято называть теории гравитации, существующие как альтернативы общей теории относительности (ОТО) или существенно (количественно или принципиально) модифицирующие ее. К альтернативным теориям гравитации… …
65МОНД — Альтернативными теориями гравитации принято называть теории гравитации, существующие как альтернативы общей теории относительности или существенно (количественно или принципиально) модифицирующие ее. К альтернативным теориям гравитации часто… …
66Infinitesimal strain theory — The infinitesimal strain theory, sometimes called small deformation theory, small displacement theory, or small displacement gradient theory, deals with infinitesimal deformations of a continuum body. For an infinitesimal deformation the… …
67Levi-Civita symbol — Not to be confused with Levi Civita connection. The Levi Civita symbol, also called the permutation symbol, antisymmetric symbol, or alternating symbol, is a mathematical symbol used in particular in tensor calculus. It is named after the Italian …
68Scalar curvature — In Riemannian geometry, the scalar curvature (or Ricci scalar) is the simplest curvature invariant of a Riemannian manifold. To each point on a Riemannian manifold, it assigns a single real number determined by the intrinsic geometry of the… …
69Elasticidad (mecánica de sólidos) — Una varilla elástica vibrando, es un ejemplo de sistema donde la energía potencial elástica se transforma en energía cinética y viceversa. En física e ingeniería, el término elasticidad designa la propiedad mecánica de ciertos materiales de… …
70Divergence — For other uses, see Divergence (disambiguation). Topics in Calculus Fundamental theorem Limits of functions Continuity Mean value theorem Differential calculus  Derivative Change of variables Implicit differentiation …
